Merge 846c9cad7c into 7e4f9ad078

Added the support for both "mousecursor" and "mouseCursor"

.github/ISSUE_TEMPLATE.md

@@ -1,9 +0,0 @@
-Describe your bug report or feature request here
-...
-...
-...
-
-### Aseprite and System version
-
-* Aseprite version: version number, installer/portable/Steam/beta/dev/commit-hash
-* System: Windows/macOS/Linux, version, distribution

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,32 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug, triage
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots or a screen recording to help explain your problem.
+
+**Aseprite & System (please complete the following information):**
+- Aseprite: [version number, installer/portable/Steam/beta/dev/commit-hash]
+- System: [Windows/macOS/Linux, version, distribution]
+- Extensions: [List the extensions you have installed]
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,29 @@
+---
+name: Feature request
+about: Suggest an idea for Aseprite
+title: ''
+labels: feature, triage
+assignees: ''
+
+---
+
+**Did other user suggested a similar idea?**
+- [ ] No
+- [ ] Yes/Links to similar ideas
+  > You can try to find a similar feature requests before in:
+  > - GitHub issues: https://github.com/aseprite/aseprite/issues?q=label%3Afeature
+  > - Community site: https://community.aseprite.org/c/features/7
+  > - Steam community: https://steamcommunity.com/app/431730/discussions/1/
+  > In case you find a similar feature request, making a comment there will be useful to give some traction and show interest in the feature. 
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

build.sh

@@ -428,9 +428,17 @@ if [ ! -d "$skia_library_dir" ] ; then
         skia_url=$(bash laf/misc/skia-url.sh $skia_build)
         skia_file=$(basename $skia_url)
         if [ ! -f "$skia_dir/$skia_file" ] ; then
+            if ! command -v curl >/dev/null 2>&1 ; then
+                echo "Error: 'curl' command line tool is not available in PATH"
+                exit 1
+            fi
             curl --ssl-revoke-best-effort -L -o "$skia_dir/$skia_file" "$skia_url"
         fi
         if [ ! -d "$skia_library_dir" ] ; then
+            if ! command -v unzip >/dev/null 2>&1 ; then
+                echo "Error: 'unzip' command line tool is not available in PATH"
+                exit 1
+            fi
             unzip -n -d "$skia_dir" "$skia_dir/$skia_file"
         fi
     else

data/gui.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- Aseprite -->
-<!-- Copyright (C) 2018-2024  Igara Studio S.A. -->
+<!-- Copyright (C) 2018-2025  Igara Studio S.A. -->
 <!-- Copyright (C) 2001-2018  David Capello -->
 <gui>
   <!-- Keyboard shortcuts -->
@@ -175,6 +175,7 @@
         <param name="popup" value="background" />
       </key>
       <key command="ShowExtras" shortcut="Ctrl+H" />
+      <key command="ToggleWorkspaceLayout" shortcut="Shift+W" />
       <!-- Tabs -->
       <key command="GotoNextTab" shortcut="Ctrl+Tab" />
       <key command="GotoPreviousTab" shortcut="Ctrl+Shift+Tab" />
@@ -371,6 +372,12 @@
         <param name="quantity" value="1" />
       </key>
 
+      <!-- Main selection actions (apply transformation / undo) -->
+      <key command="DeselectMask" shortcut="Esc" context="Transformation" />
+      <key command="Apply" shortcut="Enter" context="Transformation" />
+      <key command="Apply" shortcut="Enter Pad" context="Transformation" />
+      <key command="Undo" shortcut="Ctrl+Z" mac="Cmd+Z" context="Transformation" />
+
       <!-- Move selection with arrows -->
       <key command="MoveMask" shortcut="Left" context="Selection">
         <param name="target" value="content" />
@@ -1002,6 +1009,7 @@
       </menu>
       <menu text="@.view" id="view_menu">
         <item command="DuplicateView" text="@.view_duplicate_view" group="view_new" />
+        <item command="ToggleWorkspaceLayout" text="@.view_workspace_layout" />
         <separator />
         <item command="ShowExtras" text="@.view_show_extras" />
         <menu text="@.view_show" group="view_extras">
@@ -1203,6 +1211,7 @@
 
     <menu id="slice_popup_menu">
       <item command="SliceProperties" text="@.properties" group="slice_popup_properties" />
+      <item command="DuplicateSlice" text="@.duplicate" group="slice_popup_duplicate" />
       <item command="RemoveSlice" text="@.delete" group="slice_popup_delete" />
     </menu>
 

data/pref.xml

@@ -167,6 +167,7 @@
       <option id="keep_closed_sprite_on_memory_for" type="double" default="15.0" />
       <option id="show_full_path" type="bool" default="true" />
       <option id="edit_full_path" type="bool" default="false" />
+      <option id="workspace_layout" type="std::string" />
       <option id="timeline_position" type="TimelinePosition" default="TimelinePosition::BOTTOM" />
       <option id="timeline_layer_panel_width" type="int" default="100" />
       <option id="show_menu_bar" type="bool" default="true" />
@@ -255,6 +256,7 @@
       <option id="one_finger_as_mouse_movement" type="bool" default="true" />
       <option id="load_wintab_driver" type="bool" default="false" />
       <option id="flash_layer" type="bool" default="false" />
+      <option id="use_selection_tool_loop" type="bool" default="false" />
       <option id="nonactive_layers_opacity" type="int" default="255" />
       <option id="nonactive_layers_opacity_preview" type="int" default="255" />
     </section>

data/strings/en.ini

@@ -206,6 +206,7 @@ AddColor_Background = Background
 AddColor_Foreground = Foreground
 AddColor_Specific = Specific
 AdvancedMode = Advanced Mode
+Apply = Apply
 AutocropSprite = Trim Sprite
 AutocropSprite_ByGrid = Trim Sprite by Grid
 BackgroundFromLayer = Background from Layer
@@ -265,6 +266,7 @@ Despeckle = Despeckle
 DeveloperConsole = Developer Console
 DiscardBrush = Discard Brush
 DuplicateLayer = Duplicate Layer
+DuplicateSlice = Duplicate Slice
 DuplicateSprite = Duplicate Sprite
 DuplicateView = Duplicate View
 Exit = Exit
@@ -488,6 +490,7 @@ TilesetDuplicate = Duplicate Tileset
 Undo = Undo
 UndoHistory = Undo History
 UnlinkCel = Unlink Cel
+ToggleWorkspaceLayout = Toggle Workspace Layout
 Zoom = Zoom
 Zoom_In = Zoom In
 Zoom_Out = Zoom Out
@@ -581,8 +584,9 @@ rotsprite = RotSprite
 pixel_perfect = Pixel-perfect
 linear_gradient = Linear Gradient
 radial_gradient = Radial Gradient
-drop_pixel = Drop pixels here (Enter)
-cancel_drag = Cancel drag and drop (Esc)
+drop_pixel_and_deselect = Apply transformation and deselect
+drop_pixel = Apply transformation and keep selection
+cancel_drag = Cancel transformation and undo/discard changes
 auto_select_layer = Auto Select Layer
 all = All
 none = None
@@ -621,6 +625,14 @@ current_layer = Current Layer
 first_ref_layer = First Reference Layer
 pick = Pick:
 sample = Sample:
+position_label = P:
+rotation_label = R:
+position_x = X Position
+position_y = Y Position
+size_width = Width
+size_height = Height
+rotation_angle = Angle
+rotation_skew = Skew
 
 [convolution_matrix]
 reload_stock = &Reload Stock
@@ -789,7 +801,22 @@ empty_fonts = No system fonts were found
 [font_style]
 antialias = Antialias
 hinting = Hinting
+hinting_none = No Hinting
+hinting_slight = Slight Hinting
+hinting_full = Full Hinting
 ligatures = Ligatures
+font_weight = Font Weight
+italic = Italic
+font_weight_100 = Thin
+font_weight_200 = Extra Light
+font_weight_300 = Light
+font_weight_400 = Normal
+font_weight_500 = Medium
+font_weight_600 = Semi Bold
+font_weight_700 = Bold
+font_weight_800 = Extra Bold
+font_weight_900 = Black
+font_weight_1000 = Extra Black
 
 [frame_combo]
 all_frames = All frames
@@ -817,6 +844,8 @@ same_in_all_tools = Same in all Tools
 opacity = Opacity:
 tolerance = Tolerance:
 show_more = Show more...
+search = Search
+copy_of = {} Copy
 
 [general_text]
 copy = &Copy
@@ -957,6 +986,7 @@ key_context_move_tool = Move Tool
 key_context_freehand_tool = Freehand Tool
 key_context_shape_tool = Shape Tool
 key_context_frames_selection = Frames Selection
+key_context_transformation = Transformation
 copy_selection = Copy Selection
 snap_to_grid = Snap To Grid
 lock_axis = Lock Axis
@@ -1164,6 +1194,7 @@ select_load_from_file = &Load from MSK file
 select_save_to_file = &Save to MSK file
 view = &View
 view_duplicate_view = Duplicate &View
+view_workspace_layout = Workspace &Layout
 view_show_extras = &Extras
 view_show = &Show
 view_show_layer_edges = &Layer Edges
@@ -1205,6 +1236,14 @@ help_twitter = Twitter
 help_enter_license = Enter &License
 help_about = &About
 
+[main_window]
+layout = Workspace Layout
+default_layout = Default
+mirrored_default_layout = Mirrored Default
+timeline = Timeline
+user_layouts = User Layouts
+new_layout = New Layout...
+
 [mask_by_color]
 title = Select Color
 label_color = Color:
@@ -1233,6 +1272,20 @@ name = Name:
 tileset = Tileset:
 default_new_layer_name = New Layer
 
+[new_layout]
+title = New Workspace Layout
+name = Name:
+deleting_layout = Deleting Layout
+deleting_layout_confirmation = Are you sure you want to delete the '{}' layout?
+restoring_layout = Restoring Layout
+restoring_layout_confirmation = Are you sure you want to restore the '{}' layout?
+
+[dock]
+left = Dock Left
+right = Dock Right
+top = Dock Top
+bottom = Dock Bottom
+
 [news_listbox]
 more = More...
 problem_loading = Problems loading news. Please retry.
@@ -1562,6 +1615,7 @@ set_cursor_fix = Set cursor position from stylus location
 set_cursor_fix_tooltip = Sets the mouse position to the pen location when\nyou have two pointers available (e.g. mouse and pen)\n\nUseful to zoom in/out from the pen position and to get the\ncorrect cursor location when screencasting/live streaming.
 wintab_more_info = (More Information)
 flash_selected_layer = Flash layer when it is selected
+use_selection_tool_loop = New selection tools implementation
 non_active_layer_opacity = Opacity for non-active layers:
 cel_content_format = Cel content format:
 cel_format_compressed = Compressed
@@ -1664,6 +1718,10 @@ from = From:
 to = To:
 tolerance = Tolerance:
 
+[duplicate_slice]
+x_duplicated = Slice "{}" duplicated
+n_slices_duplicated = {} slice(s) duplicated
+
 [remove_slice]
 x_removed = Slice "{}" removed
 n_slices_removed = {} slice(s) removed
@@ -1748,6 +1806,7 @@ delete_file = Delete file, I've already sent it
 
 [slice_popup_menu]
 properties = Slice &Properties...
+duplicate = D&uplicate Slice
 delete = &Delete Slice
 
 [slice_properties]
@@ -1849,9 +1908,6 @@ more_options = More Options
 
 [timeline_conf]
 position = Position:
-left = &Left
-right = &Right
-bottom = &Bottom
 frame_header = Frame Header:
 first_frame = First Frame:
 thumbnails = Thumbnails

data/widgets/main_window.xml

@@ -1,30 +0,0 @@
-<!-- Aseprite -->
-<!-- Copyright (C) 2001-2017 by David Capello -->
-<gui>
-  <window id="main_window" noborders="true" desktop="true">
-    <vbox noborders="true" expansive="true">
-      <hbox noborders="true" id="menu_bar_placeholder" />
-      <hbox noborders="true" id="tabs_placeholder" />
-      <splitter id="color_bar_splitter"
-                horizontal="true" expansive="true"
-                by="pixel"
-                style="workspace_splitter">
-        <vbox noborders="true" id="color_bar_placeholder" />
-        <vbox noborders="true" expansive="true">
-          <vbox noborders="true" id="context_bar_placeholder" />
-          <hbox noborders="true" expansive="true">
-            <splitter id="timeline_splitter"
-                      vertical="true" expansive="true"
-                      by="percetage" position="100"
-                      style="workspace_splitter">
-              <hbox noborders="true" id="workspace_placeholder" expansive="true" />
-              <vbox noborders="true" id="timeline_placeholder" expansive="true" />
-            </splitter>
-            <vbox noborders="true" id="tool_bar_placeholder" />
-          </hbox>
-        </vbox>
-      </splitter>
-      <hbox noborders="true" id="status_bar_placeholder" />
-    </vbox>
-  </window>
-</gui>

data/widgets/new_layout.xml

@@ -0,0 +1,19 @@
+<!-- Aseprite -->
+<!-- Copyright (C) 2025 by Igara Studio S.A. -->
+<gui>
+<window id="new_layout" text="@.title">
+  <vbox>
+    <hbox>
+      <label text="@.name" />
+      <entry maxsize="128" id="name" magnet="true" expansive="true" />
+    </hbox>
+
+    <separator horizontal="true" />
+
+    <hbox homogeneous="true" cell_align="right">
+      <button text="@general.ok" closewindow="true" id="ok" disabled="true" minwidth="60" magnet="true" />
+      <button text="@general.cancel" closewindow="true" />
+    </hbox>
+  </vbox>
+</window>
+</gui>

data/widgets/options.xml

@@ -624,6 +624,7 @@
                  text="@.hue_with_sat_value"
                  pref="experimental.hue_with_sat_value_for_color_selector" />
           <check id="flash_layer" text="@.flash_selected_layer" />
+          <check id="use_selection_tool_loop" text="@.use_selection_tool_loop" />
           <hbox>
             <label text="@.non_active_layer_opacity" />
             <slider id="nonactive_layers_opacity" min="0" max="255" width="128" />

data/widgets/slice_properties.xml

@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- Aseprite -->
-<!-- Copyright (C) 2019-2024  Igara Studio S.A. -->
+<!-- Copyright (C) 2019-2025  Igara Studio S.A. -->
 <!-- Copyright (C) 2017-2018  David Capello -->
 <gui>
 <window id="slice_properties" text="@.title" help="slices#slice-properties">
-  <vbox>
+  <vbox expansive="true">
     <grid id="properties_grid" columns="3">
       <label id="label1" text="@.name" />
       <entry id="name" maxsize="256" magnet="true" cell_align="horizontal" expansive="true" />
       <button id="user_data" icon="icon_user_data" maxsize="32" tooltip="@.user_data_tooltip" />
     </grid>
-    <grid columns="2">
-      <separator horizontal="true" cell_hspan="2" />
+    <grid columns="3" expansive="true">
+      <separator horizontal="true" cell_hspan="3" />
 
       <box />
       <hbox homogeneous="true">
@@ -20,6 +20,7 @@
         <label text="@.width" />
         <label text="@.height" />
       </hbox>
+      <boxfiller cell_align="horizontal" />
 
       <label text="@.bounds" />
       <hbox homogeneous="true">
@@ -28,6 +29,7 @@
         <expr id="bounds_w" />
         <expr id="bounds_h" />
       </hbox>
+      <boxfiller />
 
       <check text="@.center" id="center" />
       <hbox homogeneous="true">
@@ -36,16 +38,18 @@
         <expr id="center_w" />
         <expr id="center_h" />
       </hbox>
+      <boxfiller />
 
       <check text="@.pivot" id="pivot" />
       <hbox>
         <expr id="pivot_x" />
         <expr id="pivot_y" />
       </hbox>
+      <boxfiller />
 
-      <separator horizontal="true" cell_hspan="2" />
-
-      <hbox cell_hspan="2">
+      <boxfiller cell_align="vertical" cell_hspan="3" />
+      <separator horizontal="true" cell_hspan="3" cell_align="horizontal" />
+      <hbox cell_hspan="3">
         <boxfiller />
         <hbox homogeneous="true">
           <button text="@general.ok" closewindow="true" id="ok" magnet="true" minwidth="60" />

data/widgets/tag_properties.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- Aseprite -->
-<!-- Copyright (C) 2019-2021  Igara Studio S.A. -->
+<!-- Copyright (C) 2019-2025  Igara Studio S.A. -->
 <!-- Copyright (C) 2015-2018  David Capello -->
 <gui>
 <window id="tag_properties" text="@.title">
@@ -23,13 +23,14 @@
       <check text="@.repeat" id="limit_repeat" />
       <vbox id="repeat_placeholder" cell_hspan="2" />
     </grid>
+    <boxfiller />
     <grid columns="2">
-      <separator horizontal="true" cell_hspan="2" minwidth="180" />
+      <separator horizontal="true" cell_align="horizontal" cell_hspan="2" minwidth="180" />
 
-      <box horizontal="true" homogeneous="true" cell_hspan="2" cell_align="right">
+      <hbox homogeneous="true" cell_hspan="2" cell_align="right">
         <button text="@general.ok" closewindow="true" id="ok" magnet="true" minwidth="60" />
         <button text="@general.cancel" closewindow="true" />
-      </box>
+      </hbox>
     </grid>
   </vbox>
 </window>

data/widgets/timeline_conf.xml

@@ -6,13 +6,7 @@
   <hbox>
     <vbox>
       <separator cell_hspan="2" text="@.position" left="true" horizontal="true" />
-      <hbox>
-        <buttonset columns="2" id="position">
-          <item text="@.left" />
-          <item text="@.right" />
-          <item text="@.bottom" hspan="2" />
-        </buttonset>
-      </hbox>
+      <button id="layout" icon="icon_layout" />
     </vbox>
     <vbox>
       <separator text="@.frame_header" left="true" horizontal="true" />

laf

@@ -1 +1 @@
-Subproject commit 8ec4b553f1618f7a4b47cdcf4cfc2663266111ac
+Subproject commit 3f1f86cc734443ba5c72d25c72cdf41ca208e9fe

src/app/CMakeLists.txt

@@ -74,7 +74,7 @@ add_custom_command(
   COMMAND ${CMAKE_COMMAND} -E copy_if_different ${output_fn}.tmp ${output_fn}
   WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
   MAIN_DEPENDENCY ${strings_en_ini}
-  DEPENDS ${GEN_DEP})
+  DEPENDS ${GEN_DEP} commands/commands_list.h)
 list(APPEND generated_files ${output_fn})
 
 # Check translations
@@ -368,6 +368,7 @@ target_sources(app-lib PRIVATE
   color_picker.cpp
   color_spaces.cpp
   color_utils.cpp
+  commands/apply.cpp
   commands/cmd_about.cpp
   commands/cmd_add_color.cpp
   commands/cmd_advanced_mode.cpp
@@ -393,6 +394,7 @@ target_sources(app-lib PRIVATE
   commands/cmd_deselect_mask.cpp
   commands/cmd_discard_brush.cpp
   commands/cmd_duplicate_layer.cpp
+  commands/cmd_duplicate_slice.cpp
   commands/cmd_duplicate_sprite.cpp
   commands/cmd_duplicate_view.cpp
   commands/cmd_enter_license.cpp
@@ -520,6 +522,7 @@ target_sources(app-lib PRIVATE
   commands/tileset_mode.cpp
   commands/toggle_other_layers_opacity.cpp
   commands/toggle_play_option.cpp
+  commands/toggle_workspace_layout.cpp
   console.cpp
   context.cpp
   context_flags.cpp
@@ -609,6 +612,7 @@ target_sources(app-lib PRIVATE
   ui/context_bar.cpp
   ui/dithering_selector.cpp
   ui/doc_view.cpp
+  ui/dock.cpp
   ui/drop_down_button.cpp
   ui/dynamics_popup.cpp
   ui/editor/brush_preview.cpp
@@ -651,8 +655,12 @@ target_sources(app-lib PRIVATE
   ui/icon_button.cpp
   ui/incompat_file_window.cpp
   ui/input_chain.cpp
+  ui/key.cpp
   ui/keyboard_shortcuts.cpp
   ui/layer_frame_comboboxes.cpp
+  ui/layout.cpp
+  ui/layouts.cpp
+  ui/layout_selector.cpp
   ui/main_menu_bar.cpp
   ui/main_window.cpp
   ui/mini_help_button.cpp
@@ -715,6 +723,7 @@ target_sources(app-lib PRIVATE
   util/render_text.cpp
   util/resize_image.cpp
   util/shader_helpers.cpp
+  util/slice_utils.cpp
   util/tile_flags_utils.cpp
   util/tileset_utils.cpp
   util/wrap_point.cpp

src/app/commands/apply.cpp

@@ -0,0 +1,46 @@
+// Aseprite
+// Copyright (C) 2025  Igara Studio S.A.
+//
+// This program is distributed under the terms of
+// the End-User License Agreement for Aseprite.
+
+#ifdef HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include "app/commands/command.h"
+#include "app/context.h"
+#include "app/ui/editor/editor.h"
+
+namespace app {
+
+// Depends on the current context/state, used to apply the current
+// transformation (drop pixels).
+class ApplyCommand : public Command {
+public:
+  ApplyCommand();
+
+protected:
+  void onExecute(Context* ctx) override;
+};
+
+ApplyCommand::ApplyCommand() : Command(CommandId::Apply())
+{
+}
+
+void ApplyCommand::onExecute(Context* ctx)
+{
+  if (!ctx->isUIAvailable())
+    return;
+
+  auto* editor = Editor::activeEditor();
+  if (editor && editor->isMovingPixels())
+    editor->dropMovingPixels();
+}
+
+Command* CommandFactory::createApplyCommand()
+{
+  return new ApplyCommand;
+}
+
+} // namespace app

src/app/commands/cmd_about.cpp

@@ -11,12 +11,12 @@
 
 #include "app/app.h"
 #include "app/commands/command.h"
-#include "app/modules/gui.h"
 #include "app/ui/main_window.h"
 #include "fmt/format.h"
 #include "ver/info.h"
 
 #include "about.xml.h"
+#include "app/context.h"
 
 namespace app {
 
@@ -27,13 +27,19 @@ public:
   AboutCommand();
 
 protected:
+  bool onEnabled(Context* context) override;
   void onExecute(Context* context) override;
 };
 
-AboutCommand::AboutCommand() : Command(CommandId::About(), CmdUIOnlyFlag)
+AboutCommand::AboutCommand() : Command(CommandId::About())
 {
 }
 
+bool AboutCommand::onEnabled(Context* context)
+{
+  return context->isUIAvailable();
+}
+
 void AboutCommand::onExecute(Context* context)
 {
   gen::About window;

src/app/commands/cmd_add_color.cpp

@@ -63,8 +63,7 @@ protected:
   std::string onGetFriendlyName() const override;
 };
 
-AddColorCommand::AddColorCommand()
-  : CommandWithNewParams<AddColorParams>(CommandId::AddColor(), CmdUIOnlyFlag)
+AddColorCommand::AddColorCommand() : CommandWithNewParams<AddColorParams>(CommandId::AddColor())
 {
 }
 

src/app/commands/cmd_advanced_mode.cpp

@@ -17,8 +17,7 @@
 #include "ui/ui.h"
 
 #include "advanced_mode.xml.h"
-
-#include <cstdio>
+#include "app/context.h"
 
 namespace app {
 
@@ -29,13 +28,19 @@ public:
   AdvancedModeCommand();
 
 protected:
+  bool onEnabled(Context* context) override;
   void onExecute(Context* context) override;
 };
 
-AdvancedModeCommand::AdvancedModeCommand() : Command(CommandId::AdvancedMode(), CmdUIOnlyFlag)
+AdvancedModeCommand::AdvancedModeCommand() : Command(CommandId::AdvancedMode())
 {
 }
 
+bool AdvancedModeCommand::onEnabled(Context* context)
+{
+  return context->isUIAvailable();
+}
+
 void AdvancedModeCommand::onExecute(Context* context)
 {
   // Switch advanced mode.

src/app/commands/cmd_background_from_layer.cpp

@@ -15,7 +15,6 @@
 #include "app/modules/gui.h"
 #include "app/tx.h"
 #include "doc/layer.h"
-#include "doc/sprite.h"
 
 namespace app {
 
@@ -28,8 +27,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-BackgroundFromLayerCommand::BackgroundFromLayerCommand()
-  : Command(CommandId::BackgroundFromLayer(), CmdRecordableFlag)
+BackgroundFromLayerCommand::BackgroundFromLayerCommand() : Command(CommandId::BackgroundFromLayer())
 {
 }
 

src/app/commands/cmd_cancel.cpp

@@ -37,7 +37,7 @@ private:
   Type m_type;
 };
 
-CancelCommand::CancelCommand() : Command(CommandId::Cancel(), CmdUIOnlyFlag), m_type(NoOp)
+CancelCommand::CancelCommand() : Command(CommandId::Cancel()), m_type(NoOp)
 {
 }
 

src/app/commands/cmd_canvas_size.cpp

@@ -22,7 +22,6 @@
 #include "app/ui/skin/skin_theme.h"
 #include "app/ui_context.h"
 #include "doc/image.h"
-#include "doc/mask.h"
 #include "doc/sprite.h"
 #include "ui/ui.h"
 
@@ -282,8 +281,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-CanvasSizeCommand::CanvasSizeCommand()
-  : CommandWithNewParams(CommandId::CanvasSize(), CmdRecordableFlag)
+CanvasSizeCommand::CanvasSizeCommand() : CommandWithNewParams(CommandId::CanvasSize())
 {
 }
 

src/app/commands/cmd_cel_opacity.cpp

@@ -20,8 +20,6 @@
 #include "app/tx.h"
 #include "app/ui/timeline/timeline.h"
 #include "doc/cel.h"
-#include "doc/cels_range.h"
-#include "doc/sprite.h"
 
 #include <string>
 
@@ -42,7 +40,7 @@ private:
   int m_opacity;
 };
 
-CelOpacityCommand::CelOpacityCommand() : Command(CommandId::CelOpacity(), CmdUIOnlyFlag)
+CelOpacityCommand::CelOpacityCommand() : Command(CommandId::CelOpacity())
 {
   m_opacity = 255;
 }

src/app/commands/cmd_cel_properties.cpp

@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2020-2023  Igara Studio S.A.
+// Copyright (C) 2020-2025  Igara Studio S.A.
 // Copyright (C) 2001-2018  David Capello
 //
 // This program is distributed under the terms of
@@ -23,7 +23,6 @@
 #include "app/ui/timeline/timeline.h"
 #include "app/ui/user_data_view.h"
 #include "app/ui_context.h"
-#include "base/mem_utils.h"
 #include "base/scoped_value.h"
 #include "doc/cel.h"
 #include "doc/cels_range.h"
@@ -101,12 +100,12 @@ public:
 
     if (countCels() > 0) {
       m_userDataView.configureAndSet((m_cel ? m_cel->data()->userData() : UserData()),
-                                     g_window->propertiesGrid());
+                                     propertiesGrid());
     }
     else if (!m_cel)
       m_userDataView.setVisible(false, false);
 
-    g_window->expandWindow(gfx::Size(g_window->bounds().w, g_window->sizeHint().h));
+    expandWindow(gfx::Size(bounds().w, sizeHint().h));
     updateFromCel();
   }
 
@@ -281,7 +280,7 @@ private:
   {
     if (countCels() > 0) {
       m_userDataView.toggleVisibility();
-      g_window->expandWindow(gfx::Size(g_window->bounds().w, g_window->sizeHint().h));
+      expandWindow(gfx::Size(bounds().w, sizeHint().h));
     }
   }
 
@@ -385,14 +384,14 @@ protected:
   void onExecute(Context* context) override;
 };
 
-CelPropertiesCommand::CelPropertiesCommand() : Command(CommandId::CelProperties(), CmdUIOnlyFlag)
+CelPropertiesCommand::CelPropertiesCommand() : Command(CommandId::CelProperties())
 {
 }
 
 bool CelPropertiesCommand::onEnabled(Context* context)
 {
-  return context->checkFlags(ContextFlags::ActiveDocumentIsWritable |
-                             ContextFlags::ActiveLayerIsImage);
+  return context->isUIAvailable() && context->checkFlags(ContextFlags::ActiveDocumentIsWritable |
+                                                         ContextFlags::ActiveLayerIsImage);
 }
 
 void CelPropertiesCommand::onExecute(Context* context)

src/app/commands/cmd_change_brush.cpp

@@ -21,7 +21,6 @@
 #include "app/tools/tool.h"
 #include "app/ui/context_bar.h"
 #include "app/ui/main_window.h"
-#include "base/convert_to.h"
 #include "doc/algorithm/flip_image.h"
 #include "doc/brush.h"
 #include "doc/image_ref.h"
@@ -64,7 +63,7 @@ private:
   int m_slot;
 };
 
-ChangeBrushCommand::ChangeBrushCommand() : Command(CommandId::ChangeBrush(), CmdUIOnlyFlag)
+ChangeBrushCommand::ChangeBrushCommand() : Command(CommandId::ChangeBrush())
 {
   m_change = None;
   m_slot = 0;

src/app/commands/cmd_change_color.cpp

@@ -14,6 +14,7 @@
 #include "app/app.h"
 #include "app/commands/command.h"
 #include "app/commands/params.h"
+#include "app/context.h"
 #include "app/i18n/strings.h"
 #include "app/modules/palettes.h"
 #include "app/ui/color_bar.h"
@@ -39,18 +40,24 @@ public:
   ChangeColorCommand();
 
 protected:
+  bool onEnabled(Context* context) override;
   bool onNeedsParams() const override { return true; }
   void onLoadParams(const Params& params) override;
   void onExecute(Context* context) override;
   std::string onGetFriendlyName() const override;
 };
 
-ChangeColorCommand::ChangeColorCommand() : Command(CommandId::ChangeColor(), CmdUIOnlyFlag)
+ChangeColorCommand::ChangeColorCommand() : Command(CommandId::ChangeColor())
 {
   m_background = false;
   m_change = None;
 }
 
+bool ChangeColorCommand::onEnabled(Context* context)
+{
+  return context->isUIAvailable();
+}
+
 void ChangeColorCommand::onLoadParams(const Params& params)
 {
   std::string target = params.get("target");

src/app/commands/cmd_change_pixel_format.cpp

@@ -21,9 +21,7 @@
 #include "app/i18n/strings.h"
 #include "app/load_matrix.h"
 #include "app/modules/gui.h"
-#include "app/modules/palettes.h"
 #include "app/sprite_job.h"
-#include "app/transaction.h"
 #include "app/ui/best_fit_criteria_selector.h"
 #include "app/ui/dithering_selector.h"
 #include "app/ui/editor/editor.h"
@@ -37,12 +35,10 @@
 #include "fmt/format.h"
 #include "render/dithering.h"
 #include "render/dithering_algorithm.h"
-#include "render/ordered_dither.h"
 #include "render/quantization.h"
 #include "render/render.h"
 #include "render/task_delegate.h"
 #include "ui/listitem.h"
-#include "ui/paint_event.h"
 #include "ui/size_hint_event.h"
 
 #include "color_mode.xml.h"
@@ -507,7 +503,7 @@ private:
 };
 
 ChangePixelFormatCommand::ChangePixelFormatCommand()
-  : CommandWithNewParams(CommandId::ChangePixelFormat(), CmdUIOnlyFlag)
+  : CommandWithNewParams(CommandId::ChangePixelFormat())
 {
 }
 

src/app/commands/cmd_clear.cpp

@@ -23,7 +23,7 @@ protected:
   void onExecute(Context* ctx) override;
 };
 
-ClearCommand::ClearCommand() : Command(CommandId::Clear(), CmdUIOnlyFlag)
+ClearCommand::ClearCommand() : Command(CommandId::Clear())
 {
 }
 

src/app/commands/cmd_clear_cel.cpp

@@ -19,7 +19,6 @@
 #include "app/ui/status_bar.h"
 #include "doc/cel.h"
 #include "doc/layer.h"
-#include "doc/sprite.h"
 
 namespace app {
 
@@ -32,7 +31,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-ClearCelCommand::ClearCelCommand() : Command(CommandId::ClearCel(), CmdRecordableFlag)
+ClearCelCommand::ClearCelCommand() : Command(CommandId::ClearCel())
 {
 }
 
@@ -76,7 +75,7 @@ void ClearCelCommand::onExecute(Context* context)
     tx.commit();
   }
 
-  if (nonEditableLayers)
+  if (context->isUIAvailable() && nonEditableLayers)
     StatusBar::instance()->showTip(1000, Strings::statusbar_tips_locked_layers());
 
   update_screen_for_document(document);

src/app/commands/cmd_clear_recent_files.cpp

@@ -23,8 +23,7 @@ protected:
   void onExecute(Context* ctx) override;
 };
 
-ClearRecentFilesCommand::ClearRecentFilesCommand()
-  : Command(CommandId::ClearRecentFiles(), CmdUIOnlyFlag)
+ClearRecentFilesCommand::ClearRecentFilesCommand() : Command(CommandId::ClearRecentFiles())
 {
 }
 

src/app/commands/cmd_close_file.cpp

@@ -12,15 +12,9 @@
 #include "app/app.h"
 #include "app/commands/command.h"
 #include "app/commands/commands.h"
-#include "app/context_access.h"
 #include "app/ui/doc_view.h"
-#include "app/ui/status_bar.h"
 #include "app/ui/workspace.h"
 #include "app/ui_context.h"
-#include "doc/sprite.h"
-#include "ui/ui.h"
-
-#include <memory>
 
 namespace app {
 
@@ -28,7 +22,7 @@ using namespace ui;
 
 class CloseFileCommand : public Command {
 public:
-  CloseFileCommand() : Command(CommandId::CloseFile(), CmdUIOnlyFlag) {}
+  CloseFileCommand() : Command(CommandId::CloseFile()) {}
 
 protected:
   bool onEnabled(Context* context) override
@@ -51,12 +45,15 @@ protected:
 
 class CloseAllFilesCommand : public Command {
 public:
-  CloseAllFilesCommand() : Command(CommandId::CloseAllFiles(), CmdRecordableFlag)
-  {
-    m_quitting = false;
-  }
+  CloseAllFilesCommand() : Command(CommandId::CloseAllFiles()) { m_quitting = false; }
 
 protected:
+  bool onEnabled(Context* context) override
+  {
+    // Null if we are in --batch mode
+    return App::instance()->workspace() != nullptr;
+  }
+
   void onLoadParams(const Params& params) override { m_quitting = params.get_as<bool>("quitting"); }
 
   void onExecute(Context* context) override

src/app/commands/cmd_color_quantization.cpp

@@ -21,7 +21,6 @@
 #include "app/transaction.h"
 #include "app/ui/color_bar.h"
 #include "app/ui/rgbmap_algorithm_selector.h"
-#include "app/ui_context.h"
 #include "doc/palette.h"
 #include "doc/sprite.h"
 #include "render/quantization.h"
@@ -71,7 +70,7 @@ protected:
 };
 
 ColorQuantizationCommand::ColorQuantizationCommand()
-  : CommandWithNewParams<ColorQuantizationParams>(CommandId::ColorQuantization(), CmdRecordableFlag)
+  : CommandWithNewParams<ColorQuantizationParams>(CommandId::ColorQuantization())
 {
 }
 

src/app/commands/cmd_contiguous_fill.cpp

@@ -24,7 +24,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-ContiguousFillCommand::ContiguousFillCommand() : Command(CommandId::ContiguousFill(), CmdUIOnlyFlag)
+ContiguousFillCommand::ContiguousFillCommand() : Command(CommandId::ContiguousFill())
 {
 }
 

src/app/commands/cmd_copy.cpp

@@ -23,7 +23,7 @@ protected:
   void onExecute(Context* ctx) override;
 };
 
-CopyCommand::CopyCommand() : Command(CommandId::Copy(), CmdUIOnlyFlag)
+CopyCommand::CopyCommand() : Command(CommandId::Copy())
 {
 }
 

src/app/commands/cmd_copy_cel.cpp

@@ -10,9 +10,7 @@
 
 #include "app/app.h"
 #include "app/commands/command.h"
-#include "app/context_access.h"
 #include "app/ui/timeline/timeline.h"
-#include "ui/base.h"
 
 namespace app {
 
@@ -25,13 +23,13 @@ protected:
   void onExecute(Context* context) override;
 };
 
-CopyCelCommand::CopyCelCommand() : Command(CommandId::CopyCel(), CmdUIOnlyFlag)
+CopyCelCommand::CopyCelCommand() : Command(CommandId::CopyCel())
 {
 }
 
 bool CopyCelCommand::onEnabled(Context* context)
 {
-  return App::instance()->timeline()->isMovingCel();
+  return App::instance()->timeline() && App::instance()->timeline()->isMovingCel();
 }
 
 void CopyCelCommand::onExecute(Context* context)

src/app/commands/cmd_copy_merged.cpp

@@ -24,7 +24,7 @@ protected:
   void onExecute(Context* ctx) override;
 };
 
-CopyMergedCommand::CopyMergedCommand() : Command(CommandId::CopyMerged(), CmdUIOnlyFlag)
+CopyMergedCommand::CopyMergedCommand() : Command(CommandId::CopyMerged())
 {
 }
 

src/app/commands/cmd_crop.cpp

@@ -16,11 +16,7 @@
 #include "app/modules/gui.h"
 #include "app/tx.h"
 #include "app/ui/color_bar.h"
-#include "app/util/autocrop.h"
-#include "doc/image.h"
-#include "doc/layer.h"
 #include "doc/mask.h"
-#include "doc/sprite.h"
 
 namespace app {
 
@@ -37,7 +33,7 @@ private:
   gfx::Rect m_bounds;
 };
 
-CropSpriteCommand::CropSpriteCommand() : Command(CommandId::CropSprite(), CmdRecordableFlag)
+CropSpriteCommand::CropSpriteCommand() : Command(CommandId::CropSprite())
 {
 }
 
@@ -95,8 +91,7 @@ private:
   bool m_byGrid = false;
 };
 
-AutocropSpriteCommand::AutocropSpriteCommand()
-  : Command(CommandId::AutocropSprite(), CmdRecordableFlag)
+AutocropSpriteCommand::AutocropSpriteCommand() : Command(CommandId::AutocropSprite())
 {
 }
 

src/app/commands/cmd_cut.cpp

@@ -23,7 +23,7 @@ protected:
   void onExecute(Context* ctx) override;
 };
 
-CutCommand::CutCommand() : Command(CommandId::Cut(), CmdUIOnlyFlag)
+CutCommand::CutCommand() : Command(CommandId::Cut())
 {
 }
 

src/app/commands/cmd_deselect_mask.cpp

@@ -14,8 +14,6 @@
 #include "app/context_access.h"
 #include "app/modules/gui.h"
 #include "app/tx.h"
-#include "doc/mask.h"
-#include "doc/sprite.h"
 
 namespace app {
 
@@ -28,7 +26,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-DeselectMaskCommand::DeselectMaskCommand() : Command(CommandId::DeselectMask(), CmdRecordableFlag)
+DeselectMaskCommand::DeselectMaskCommand() : Command(CommandId::DeselectMask())
 {
 }
 

src/app/commands/cmd_developer_console.cpp

@@ -29,8 +29,7 @@ protected:
   void onExecute(Context* context);
 };
 
-DeveloperConsoleCommand::DeveloperConsoleCommand()
-  : Command(CommandId::DeveloperConsole(), CmdUIOnlyFlag)
+DeveloperConsoleCommand::DeveloperConsoleCommand() : Command(CommandId::DeveloperConsole())
 {
 }
 

src/app/commands/cmd_discard_brush.cpp

@@ -12,8 +12,6 @@
 #include "app/app.h"
 #include "app/commands/command.h"
 #include "app/commands/commands.h"
-#include "app/context_access.h"
-#include "app/tools/tool_box.h"
 #include "app/ui/context_bar.h"
 #include "app/ui_context.h"
 
@@ -28,12 +26,15 @@ protected:
   void onExecute(Context* context) override;
 };
 
-DiscardBrushCommand::DiscardBrushCommand() : Command(CommandId::DiscardBrush(), CmdUIOnlyFlag)
+DiscardBrushCommand::DiscardBrushCommand() : Command(CommandId::DiscardBrush())
 {
 }
 
 bool DiscardBrushCommand::onEnabled(Context* context)
 {
+  if (!context->isUIAvailable())
+    return false;
+
   ContextBar* ctxBar = App::instance()->contextBar();
   return (ctxBar->activeBrush()->type() == kImageBrushType);
 }

src/app/commands/cmd_duplicate_layer.cpp

@@ -10,16 +10,11 @@
 
 #include "app/app.h"
 #include "app/commands/command.h"
-#include "app/console.h"
 #include "app/context_access.h"
 #include "app/doc_api.h"
-#include "app/doc_undo.h"
 #include "app/modules/gui.h"
 #include "app/tx.h"
-#include "app/ui/editor/editor.h"
 #include "doc/layer.h"
-#include "doc/sprite.h"
-#include "ui/ui.h"
 
 namespace app {
 
@@ -32,8 +27,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-DuplicateLayerCommand::DuplicateLayerCommand()
-  : Command(CommandId::DuplicateLayer(), CmdRecordableFlag)
+DuplicateLayerCommand::DuplicateLayerCommand() : Command(CommandId::DuplicateLayer())
 {
 }
 

src/app/commands/cmd_duplicate_slice.cpp

@@ -0,0 +1,121 @@
+// Aseprite
+// Copyright (C) 2025  Igara Studio S.A.
+//
+// This program is distributed under the terms of
+// the End-User License Agreement for Aseprite.
+
+#ifdef HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include "app/cmd/add_slice.h"
+#include "app/commands/command.h"
+#include "app/context.h"
+#include "app/context_access.h"
+#include "app/context_flags.h"
+#include "app/i18n/strings.h"
+#include "app/site.h"
+#include "app/tx.h"
+#include "app/ui/status_bar.h"
+#include "app/util/slice_utils.h"
+#include "base/convert_to.h"
+#include "doc/object_id.h"
+#include "doc/slice.h"
+
+namespace app {
+
+// Moves the given slice by the dx and dy values
+void offset(Slice* slice, int dx, int dy)
+{
+  for (auto it = slice->begin(); it != slice->end(); ++it) {
+    auto* sk = (*it).value();
+    gfx::Rect bounds = sk->bounds();
+    bounds.offset(gfx::Point{ dx, dy });
+    sk->setBounds(bounds);
+  }
+}
+
+class DuplicateSliceCommand : public Command {
+public:
+  DuplicateSliceCommand();
+
+protected:
+  void onLoadParams(const Params& params) override;
+  bool onEnabled(Context* context) override;
+  void onExecute(Context* context) override;
+
+private:
+  ObjectId m_sliceId;
+};
+
+DuplicateSliceCommand::DuplicateSliceCommand() : Command(CommandId::DuplicateSlice())
+{
+}
+
+void DuplicateSliceCommand::onLoadParams(const Params& params)
+{
+  std::string id = params.get("id");
+  if (!id.empty())
+    m_sliceId = ObjectId(base::convert_to<doc::ObjectId>(id));
+  else
+    m_sliceId = NullId;
+}
+
+bool DuplicateSliceCommand::onEnabled(Context* context)
+{
+  return context->checkFlags(ContextFlags::ActiveDocumentIsWritable |
+                             ContextFlags::HasActiveSprite | ContextFlags::HasActiveLayer);
+}
+
+void DuplicateSliceCommand::onExecute(Context* context)
+{
+  std::vector<Slice*> selectedSlices;
+  {
+    const ContextReader reader(context);
+    if (m_sliceId == NullId) {
+      selectedSlices = get_selected_slices(reader.site());
+      if (selectedSlices.empty())
+        return;
+    }
+    else
+      selectedSlices.push_back(reader.sprite()->slices().getById(m_sliceId));
+  }
+
+  ContextWriter writer(context);
+  Tx tx(writer, "Duplicate Slice");
+  Sprite* sprite = writer.site().sprite();
+
+  Doc* doc = static_cast<Doc*>(sprite->document());
+  doc->notifyBeforeSlicesDuplication();
+  for (auto* s : selectedSlices) {
+    Slice* slice = new Slice(*s);
+    slice->setName(Strings::general_copy_of(slice->name()));
+    // Offset a bit the duplicated slice to avoid overlapping
+    offset(slice, 2, 2);
+
+    tx(new cmd::AddSlice(sprite, slice));
+    doc->notifySliceDuplicated(slice);
+  }
+  tx.commit();
+
+  std::string sliceName;
+  if (selectedSlices.size() == 1)
+    sliceName = selectedSlices[0]->name();
+
+  StatusBar::instance()->invalidate();
+  if (!sliceName.empty()) {
+    StatusBar::instance()->showTip(1000, Strings::duplicate_slice_x_duplicated(sliceName));
+  }
+  else {
+    StatusBar::instance()->showTip(
+      1000,
+      Strings::duplicate_slice_n_slices_duplicated(selectedSlices.size()));
+  }
+}
+
+Command* CommandFactory::createDuplicateSliceCommand()
+{
+  return new DuplicateSliceCommand;
+}
+
+} // namespace app

src/app/commands/cmd_duplicate_sprite.cpp

@@ -16,13 +16,10 @@
 #include "app/ini_file.h"
 #include "app/ui_context.h"
 #include "base/fs.h"
-#include "doc/sprite.h"
 #include "ui/ui.h"
 
 #include "duplicate_sprite.xml.h"
 
-#include <cstdio>
-
 namespace app {
 
 using namespace ui;
@@ -43,7 +40,7 @@ protected:
 };
 
 DuplicateSpriteCommand::DuplicateSpriteCommand()
-  : CommandWithNewParams<DuplicateSpriteParams>(CommandId::DuplicateSprite(), CmdRecordableFlag)
+  : CommandWithNewParams<DuplicateSpriteParams>(CommandId::DuplicateSprite())
 {
 }
 

src/app/commands/cmd_duplicate_view.cpp

@@ -13,8 +13,6 @@
 #include "app/commands/command.h"
 #include "app/ui/workspace.h"
 
-#include <cstdio>
-
 namespace app {
 
 // using namespace ui;
@@ -28,7 +26,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-DuplicateViewCommand::DuplicateViewCommand() : Command(CommandId::DuplicateView(), CmdUIOnlyFlag)
+DuplicateViewCommand::DuplicateViewCommand() : Command(CommandId::DuplicateView())
 {
 }
 

src/app/commands/cmd_enter_license.cpp

@@ -5,7 +5,6 @@
 // the End-User License Agreement for Aseprite.
 
 #include "app/commands/command.h"
-#include "app/context.h"
 
 #ifdef ENABLE_DRM
   #include "app/ui/enter_license.h"
@@ -24,7 +23,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-EnterLicenseCommand::EnterLicenseCommand() : Command(CommandId::EnterLicense(), CmdUIOnlyFlag)
+EnterLicenseCommand::EnterLicenseCommand() : Command(CommandId::EnterLicense())
 {
 }
 

src/app/commands/cmd_exit.cpp

@@ -16,7 +16,6 @@
 #include "app/doc.h"
 #include "app/job.h"
 #include "app/ui/main_window.h"
-#include "ui/alert.h"
 
 #ifdef ENABLE_SCRIPTING
   #include "app/commands/debugger.h"
@@ -32,7 +31,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-ExitCommand::ExitCommand() : Command(CommandId::Exit(), CmdUIOnlyFlag)
+ExitCommand::ExitCommand() : Command(CommandId::Exit())
 {
 }
 

src/app/commands/cmd_export_sprite_sheet.cpp

@@ -33,15 +33,12 @@
 #include "app/ui/status_bar.h"
 #include "app/ui/timeline/timeline.h"
 #include "app/util/layer_utils.h"
-#include "base/convert_to.h"
 #include "base/fs.h"
 #include "base/string.h"
 #include "base/thread.h"
 #include "doc/layer.h"
-#include "doc/layer_tilemap.h"
 #include "doc/tag.h"
 #include "doc/tileset.h"
-#include "doc/tilesets.h"
 #include "fmt/format.h"
 #include "ui/message.h"
 #include "ui/system.h"
@@ -1187,8 +1184,7 @@ private:
 
 } // anonymous namespace
 
-ExportSpriteSheetCommand::ExportSpriteSheetCommand(const char* id)
-  : CommandWithNewParams(id, CmdRecordableFlag)
+ExportSpriteSheetCommand::ExportSpriteSheetCommand(const char* id) : CommandWithNewParams(id)
 {
 }
 

src/app/commands/cmd_eyedropper.cpp

@@ -17,7 +17,6 @@
 #include "app/context.h"
 #include "app/pref/preferences.h"
 #include "app/site.h"
-#include "app/tools/tool.h"
 #include "app/tools/tool_box.h"
 #include "app/ui/color_bar.h"
 #include "app/ui/editor/editor.h"
@@ -28,7 +27,7 @@ namespace app {
 
 using namespace ui;
 
-EyedropperCommand::EyedropperCommand() : Command(CommandId::Eyedropper(), CmdUIOnlyFlag)
+EyedropperCommand::EyedropperCommand() : Command(CommandId::Eyedropper())
 {
   m_background = false;
 }

src/app/commands/cmd_fill_and_stroke.cpp

@@ -39,7 +39,7 @@ private:
 };
 
 FillCommand::FillCommand(Type type)
-  : Command(type == Stroke ? CommandId::Stroke() : CommandId::Fill(), CmdUIOnlyFlag)
+  : Command(type == Stroke ? CommandId::Stroke() : CommandId::Fill())
   , m_type(type)
 {
 }

src/app/commands/cmd_fit_screen.cpp

@@ -11,7 +11,6 @@
 
 #include "app/app.h"
 #include "app/commands/command.h"
-#include "app/context_access.h"
 #include "app/ui/editor/editor.h"
 
 namespace app {
@@ -25,7 +24,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-FitScreenCommand::FitScreenCommand() : Command(CommandId::FitScreen(), CmdUIOnlyFlag)
+FitScreenCommand::FitScreenCommand() : Command(CommandId::FitScreen())
 {
 }
 

src/app/commands/cmd_flatten_layers.cpp

@@ -36,7 +36,7 @@ protected:
   bool m_visibleOnly;
 };
 
-FlattenLayersCommand::FlattenLayersCommand() : Command(CommandId::FlattenLayers(), CmdUIOnlyFlag)
+FlattenLayersCommand::FlattenLayersCommand() : Command(CommandId::FlattenLayers())
 {
   m_visibleOnly = false;
 }

src/app/commands/cmd_flip.cpp

@@ -20,7 +20,6 @@
 #include "app/commands/params.h"
 #include "app/context_access.h"
 #include "app/doc_api.h"
-#include "app/doc_range.h"
 #include "app/i18n/strings.h"
 #include "app/modules/gui.h"
 #include "app/tools/tool_box.h"
@@ -38,11 +37,10 @@
 #include "doc/layer.h"
 #include "doc/mask.h"
 #include "doc/sprite.h"
-#include "gfx/size.h"
 
 namespace app {
 
-FlipCommand::FlipCommand() : Command(CommandId::Flip(), CmdRecordableFlag)
+FlipCommand::FlipCommand() : Command(CommandId::Flip())
 {
   m_flipMask = false;
   m_flipType = doc::algorithm::FlipHorizontal;

src/app/commands/cmd_frame_properties.cpp

@@ -44,12 +44,11 @@ private:
 
   // Frame to be shown. It can be ALL_FRAMES, CURRENT_RANGE, or a
   // number indicating a specific frame (1 is the first frame).
-  Target m_target;
-  frame_t m_frame;
+  Target m_target = CURRENT_RANGE;
+  frame_t m_frame = 1;
 };
 
-FramePropertiesCommand::FramePropertiesCommand()
-  : Command(CommandId::FrameProperties(), CmdUIOnlyFlag)
+FramePropertiesCommand::FramePropertiesCommand() : Command(CommandId::FrameProperties())
 {
 }
 
@@ -59,7 +58,7 @@ void FramePropertiesCommand::onLoadParams(const Params& params)
   if (frame == "all") {
     m_target = ALL_FRAMES;
   }
-  else if (frame == "current") {
+  else if (frame == "current" || !params.has_param("frame")) {
     m_target = CURRENT_RANGE;
   }
   else {
@@ -70,7 +69,7 @@ void FramePropertiesCommand::onLoadParams(const Params& params)
 
 bool FramePropertiesCommand::onEnabled(Context* context)
 {
-  return context->checkFlags(ContextFlags::ActiveDocumentIsWritable);
+  return context->isUIAvailable() && context->checkFlags(ContextFlags::ActiveDocumentIsWritable);
 }
 
 void FramePropertiesCommand::onExecute(Context* context)

src/app/commands/cmd_frame_tag_properties.cpp

@@ -15,7 +15,6 @@
 #include "app/cmd/set_tag_range.h"
 #include "app/cmd/set_tag_repeat.h"
 #include "app/cmd/set_user_data.h"
-#include "app/color.h"
 #include "app/commands/command.h"
 #include "app/commands/params.h"
 #include "app/context_access.h"
@@ -48,7 +47,7 @@ private:
 };
 
 FrameTagPropertiesCommand::FrameTagPropertiesCommand()
-  : Command(CommandId::FrameTagProperties(), CmdUIOnlyFlag)
+  : Command(CommandId::FrameTagProperties())
   , m_tagId(NullId)
 {
 }
@@ -66,7 +65,7 @@ void FrameTagPropertiesCommand::onLoadParams(const Params& params)
 
 bool FrameTagPropertiesCommand::onEnabled(Context* context)
 {
-  return context->checkFlags(ContextFlags::ActiveDocumentIsWritable);
+  return context->isUIAvailable() && context->checkFlags(ContextFlags::ActiveDocumentIsWritable);
 }
 
 void FrameTagPropertiesCommand::onExecute(Context* context)

src/app/commands/cmd_fullscreen_mode.cpp

@@ -27,7 +27,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-FullscreenModeCommand::FullscreenModeCommand() : Command(CommandId::FullscreenMode(), CmdUIOnlyFlag)
+FullscreenModeCommand::FullscreenModeCommand() : Command(CommandId::FullscreenMode())
 {
 }
 

src/app/commands/cmd_fullscreen_preview.cpp

@@ -23,10 +23,7 @@
 #include "app/ui/main_window.h"
 #include "app/ui/preview_editor.h"
 #include "app/ui/status_bar.h"
-#include "app/util/conversion_to_surface.h"
-#include "doc/image.h"
 #include "doc/palette.h"
-#include "doc/primitives.h"
 #include "doc/sprite.h"
 #include "gfx/matrix.h"
 #include "os/surface.h"
@@ -308,8 +305,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-FullscreenPreviewCommand::FullscreenPreviewCommand()
-  : Command(CommandId::FullscreenPreview(), CmdUIOnlyFlag)
+FullscreenPreviewCommand::FullscreenPreviewCommand() : Command(CommandId::FullscreenPreview())
 {
 }
 

src/app/commands/cmd_goto_frame.cpp

@@ -31,7 +31,7 @@ using namespace doc;
 
 class GotoCommand : public Command {
 protected:
-  GotoCommand(const char* id) : Command(id, CmdRecordableFlag) {}
+  GotoCommand(const char* id) : Command(id) {}
 
   bool onEnabled(Context* context) override { return (Editor::activeEditor() != nullptr); }
 

src/app/commands/cmd_goto_layer.cpp

@@ -24,11 +24,7 @@ namespace app {
 
 class GotoLayerCommand : public Command {
 public:
-  GotoLayerCommand(int offset, const char* id, CommandFlags flags)
-    : Command(id, flags)
-    , m_offset(offset)
-  {
-  }
+  GotoLayerCommand(int offset, const char* id) : Command(id), m_offset(offset) {}
 
 protected:
   bool onEnabled(Context* context) override
@@ -88,12 +84,12 @@ private:
 
 class GotoPreviousLayerCommand : public GotoLayerCommand {
 public:
-  GotoPreviousLayerCommand() : GotoLayerCommand(-1, "GotoPreviousLayer", CmdUIOnlyFlag) {}
+  GotoPreviousLayerCommand() : GotoLayerCommand(-1, CommandId::GotoPreviousLayer()) {}
 };
 
 class GotoNextLayerCommand : public GotoLayerCommand {
 public:
-  GotoNextLayerCommand() : GotoLayerCommand(+1, "GotoNextLayer", CmdUIOnlyFlag) {}
+  GotoNextLayerCommand() : GotoLayerCommand(+1, CommandId::GotoNextLayer()) {}
 };
 
 Command* CommandFactory::createGotoPreviousLayerCommand()

src/app/commands/cmd_goto_tab.cpp

@@ -24,7 +24,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-GotoNextTabCommand::GotoNextTabCommand() : Command(CommandId::GotoNextTab(), CmdUIOnlyFlag)
+GotoNextTabCommand::GotoNextTabCommand() : Command(CommandId::GotoNextTab())
 {
 }
 
@@ -50,8 +50,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-GotoPreviousTabCommand::GotoPreviousTabCommand()
-  : Command(CommandId::GotoPreviousTab(), CmdRecordableFlag)
+GotoPreviousTabCommand::GotoPreviousTabCommand() : Command(CommandId::GotoPreviousTab())
 {
 }
 

src/app/commands/cmd_grid.cpp

@@ -15,13 +15,9 @@
 #include "app/context.h"
 #include "app/context_access.h"
 #include "app/doc.h"
-#include "app/find_widget.h"
-#include "app/load_widget.h"
 #include "app/pref/preferences.h"
 #include "app/tx.h"
 #include "app/ui/status_bar.h"
-#include "app/ui_context.h"
-#include "doc/document.h"
 #include "doc/mask.h"
 #include "ui/window.h"
 
@@ -36,7 +32,7 @@ using namespace gfx;
 
 class SnapToGridCommand : public Command {
 public:
-  SnapToGridCommand() : Command(CommandId::SnapToGrid(), CmdUIOnlyFlag) {}
+  SnapToGridCommand() : Command(CommandId::SnapToGrid()) {}
 
 protected:
   bool onChecked(Context* ctx) override
@@ -51,13 +47,14 @@ protected:
     bool newValue = !docPref.grid.snap();
     docPref.grid.snap(newValue);
 
-    StatusBar::instance()->showSnapToGridWarning(newValue);
+    if (ctx->isUIAvailable())
+      StatusBar::instance()->showSnapToGridWarning(newValue);
   }
 };
 
 class SelectionAsGridCommand : public Command {
 public:
-  SelectionAsGridCommand() : Command(CommandId::SelectionAsGrid(), CmdUIOnlyFlag) {}
+  SelectionAsGridCommand() : Command(CommandId::SelectionAsGrid()) {}
 
 protected:
   bool onEnabled(Context* ctx) override
@@ -92,13 +89,13 @@ protected:
   void onExecute(Context* context) override;
 };
 
-GridSettingsCommand::GridSettingsCommand() : Command(CommandId::GridSettings(), CmdUIOnlyFlag)
+GridSettingsCommand::GridSettingsCommand() : Command(CommandId::GridSettings())
 {
 }
 
 bool GridSettingsCommand::onEnabled(Context* context)
 {
-  return true;
+  return context->isUIAvailable();
 }
 
 void GridSettingsCommand::onExecute(Context* context)

src/app/commands/cmd_home.cpp

@@ -10,6 +10,7 @@
 
 #include "app/app.h"
 #include "app/commands/command.h"
+#include "app/context.h"
 #include "app/ui/main_window.h"
 
 namespace app {
@@ -26,7 +27,7 @@ protected:
   bool onEnabled(Context* context) override;
 };
 
-HomeCommand::HomeCommand() : Command(CommandId::Home(), CmdUIOnlyFlag)
+HomeCommand::HomeCommand() : Command(CommandId::Home())
 {
 }
 
@@ -41,7 +42,7 @@ void HomeCommand::onExecute(Context* context)
 
 bool HomeCommand::onEnabled(Context* context)
 {
-  return !App::instance()->mainWindow()->isHomeSelected();
+  return context->isUIAvailable() && !App::instance()->mainWindow()->isHomeSelected();
 }
 
 Command* CommandFactory::createHomeCommand()

src/app/commands/cmd_import_sprite_sheet.cpp

@@ -20,20 +20,14 @@
 #include "app/doc_api.h"
 #include "app/i18n/strings.h"
 #include "app/modules/gui.h"
-#include "app/modules/palettes.h"
 #include "app/pref/preferences.h"
 #include "app/tx.h"
-#include "app/ui/drop_down_button.h"
 #include "app/ui/editor/editor.h"
-#include "app/ui/editor/editor_decorator.h"
 #include "app/ui/editor/select_box_state.h"
-#include "app/ui/editor/standby_state.h"
 #include "app/ui/workspace.h"
 #include "doc/cel.h"
 #include "doc/image.h"
 #include "doc/layer.h"
-#include "doc/palette.h"
-#include "doc/primitives.h"
 #include "doc/sprite.h"
 #include "render/render.h"
 #include "ui/ui.h"
@@ -518,7 +512,7 @@ protected:
 };
 
 ImportSpriteSheetCommand::ImportSpriteSheetCommand()
-  : CommandWithNewParams(CommandId::ImportSpriteSheet(), CmdRecordableFlag)
+  : CommandWithNewParams(CommandId::ImportSpriteSheet())
 {
 }
 

src/app/commands/cmd_invert_mask.cpp

@@ -31,7 +31,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-InvertMaskCommand::InvertMaskCommand() : Command(CommandId::InvertMask(), CmdRecordableFlag)
+InvertMaskCommand::InvertMaskCommand() : Command(CommandId::InvertMask())
 {
 }
 

src/app/commands/cmd_keyboard_shortcuts.cpp

@@ -26,22 +26,17 @@
 #include "app/ui/select_shortcut.h"
 #include "app/ui/separator_in_view.h"
 #include "app/ui/skin/skin_theme.h"
-#include "base/fs.h"
 #include "base/pi.h"
 #include "base/scoped_value.h"
-#include "base/split_string.h"
-#include "base/string.h"
 #include "ui/alert.h"
 #include "ui/fit_bounds.h"
 #include "ui/graphics.h"
 #include "ui/listitem.h"
 #include "ui/message.h"
 #include "ui/paint_event.h"
-#include "ui/resize_event.h"
 #include "ui/separator.h"
 #include "ui/size_hint_event.h"
 #include "ui/splitter.h"
-#include "ui/system.h"
 
 #include "keyboard_shortcuts.xml.h"
 
@@ -269,7 +264,7 @@ private:
 
     if (m_key && m_key->keycontext() != KeyContext::Any) {
       int w = m_headerItem->contextXPos() +
-              font()->textLength(convertKeyContextToUserFriendlyString(m_key->keycontext()));
+              font()->textLength(convert_keycontext_to_user_friendly_string(m_key->keycontext()));
       size.w = std::max(size.w, w);
     }
 
@@ -317,7 +312,7 @@ private:
 
     if (m_key && !m_key->shortcuts().empty()) {
       if (m_key->keycontext() != KeyContext::Any) {
-        g->drawText(convertKeyContextToUserFriendlyString(m_key->keycontext()),
+        g->drawText(convert_keycontext_to_user_friendly_string(m_key->keycontext()),
                     fg,
                     bg,
                     gfx::Point(contextXPos, y));
@@ -595,7 +590,7 @@ private:
         case KeyContext::MoveTool:
         case KeyContext::FreehandTool:
         case KeyContext::ShapeTool:
-          text = convertKeyContextToUserFriendlyString(key->keycontext()) + ": " + text;
+          text = convert_keycontext_to_user_friendly_string(key->keycontext()) + ": " + text;
           break;
       }
       KeyItem* keyItem = new KeyItem(m_keys, m_menuKeys, text, key, nullptr, 0, &m_headerItem);
@@ -977,6 +972,7 @@ public:
   KeyboardShortcutsCommand();
 
 protected:
+  bool onEnabled(Context* context) override;
   void onLoadParams(const Params& params) override;
   void onExecute(Context* context) override;
 
@@ -986,11 +982,15 @@ private:
   std::string m_search;
 };
 
-KeyboardShortcutsCommand::KeyboardShortcutsCommand()
-  : Command(CommandId::KeyboardShortcuts(), CmdUIOnlyFlag)
+KeyboardShortcutsCommand::KeyboardShortcutsCommand() : Command(CommandId::KeyboardShortcuts())
 {
 }
 
+bool KeyboardShortcutsCommand::onEnabled(Context* context)
+{
+  return context->isUIAvailable();
+}
+
 void KeyboardShortcutsCommand::onLoadParams(const Params& params)
 {
   m_search = params.get("search");

src/app/commands/cmd_launch.cpp

@@ -34,10 +34,7 @@ private:
   std::string m_path;
 };
 
-LaunchCommand::LaunchCommand()
-  : Command(CommandId::Launch(), CmdUIOnlyFlag)
-  , m_type(Url)
-  , m_path("")
+LaunchCommand::LaunchCommand() : Command(CommandId::Launch()), m_type(Url), m_path("")
 {
 }
 

src/app/commands/cmd_layer_from_background.cpp

@@ -14,8 +14,6 @@
 #include "app/context_access.h"
 #include "app/modules/gui.h"
 #include "app/tx.h"
-#include "doc/layer.h"
-#include "doc/sprite.h"
 
 namespace app {
 
@@ -28,8 +26,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-LayerFromBackgroundCommand::LayerFromBackgroundCommand()
-  : Command(CommandId::LayerFromBackground(), CmdRecordableFlag)
+LayerFromBackgroundCommand::LayerFromBackgroundCommand() : Command(CommandId::LayerFromBackground())
 {
 }
 

src/app/commands/cmd_layer_lock.cpp

@@ -9,11 +9,9 @@
   #include "config.h"
 #endif
 
-#include "app/app.h"
 #include "app/commands/command.h"
 #include "app/context_access.h"
 #include "app/modules/gui.h"
-#include "doc/image.h"
 #include "doc/layer.h"
 
 namespace app {
@@ -30,7 +28,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-LayerLockCommand::LayerLockCommand() : Command(CommandId::LayerLock(), CmdRecordableFlag)
+LayerLockCommand::LayerLockCommand() : Command(CommandId::LayerLock())
 {
 }
 

src/app/commands/cmd_layer_opacity.cpp

@@ -9,7 +9,6 @@
   #include "config.h"
 #endif
 
-#include "app/app.h"
 #include "app/cmd/set_layer_opacity.h"
 #include "app/commands/command.h"
 #include "app/commands/params.h"
@@ -40,7 +39,7 @@ private:
   int m_opacity;
 };
 
-LayerOpacityCommand::LayerOpacityCommand() : Command(CommandId::LayerOpacity(), CmdUIOnlyFlag)
+LayerOpacityCommand::LayerOpacityCommand() : Command(CommandId::LayerOpacity())
 {
   m_opacity = 255;
 }

src/app/commands/cmd_layer_properties.cpp

@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2020-2024  Igara Studio S.A.
+// Copyright (C) 2020-2025  Igara Studio S.A.
 // Copyright (C) 2001-2018  David Capello
 //
 // This program is distributed under the terms of
@@ -34,7 +34,6 @@
 #include "app/ui_context.h"
 #include "base/convert_to.h"
 #include "base/scoped_value.h"
-#include "doc/image.h"
 #include "doc/layer.h"
 #include "doc/layer_tilemap.h"
 #include "doc/sprite.h"
@@ -166,7 +165,7 @@ public:
       m_document->add_observer(this);
 
     if (countLayers() > 0) {
-      m_userDataView.configureAndSet(m_layer->userData(), g_window->propertiesGrid());
+      m_userDataView.configureAndSet(m_layer->userData(), propertiesGrid());
       if (m_remapAfterConfigure) {
         remapWindow();
         centerWindow();
@@ -368,8 +367,7 @@ private:
   {
     if (m_layer) {
       m_userDataView.toggleVisibility();
-      g_window->remapWindow();
-      manager()->invalidate();
+      expandWindow(gfx::Size(bounds().w, sizeHint().h));
     }
   }
 
@@ -500,14 +498,14 @@ private:
   bool m_remapAfterConfigure = false;
 };
 
-LayerPropertiesCommand::LayerPropertiesCommand()
-  : Command(CommandId::LayerProperties(), CmdRecordableFlag)
+LayerPropertiesCommand::LayerPropertiesCommand() : Command(CommandId::LayerProperties())
 {
 }
 
 bool LayerPropertiesCommand::onEnabled(Context* context)
 {
-  return context->checkFlags(ContextFlags::ActiveDocumentIsWritable | ContextFlags::HasActiveLayer);
+  return context->isUIAvailable() &&
+         context->checkFlags(ContextFlags::ActiveDocumentIsWritable | ContextFlags::HasActiveLayer);
 }
 
 void LayerPropertiesCommand::onExecute(Context* context)

src/app/commands/cmd_layer_visibility.cpp

@@ -12,7 +12,6 @@
 #include "app/commands/command.h"
 #include "app/context_access.h"
 #include "app/modules/gui.h"
-#include "doc/image.h"
 #include "doc/layer.h"
 
 namespace app {
@@ -29,8 +28,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-LayerVisibilityCommand::LayerVisibilityCommand()
-  : Command(CommandId::LayerVisibility(), CmdRecordableFlag)
+LayerVisibilityCommand::LayerVisibilityCommand() : Command(CommandId::LayerVisibility())
 {
 }
 

src/app/commands/cmd_link_cels.cpp

@@ -18,7 +18,6 @@
 #include "app/ui/status_bar.h"
 #include "doc/cel.h"
 #include "doc/layer.h"
-#include "doc/sprite.h"
 
 namespace app {
 
@@ -31,7 +30,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-LinkCelsCommand::LinkCelsCommand() : Command(CommandId::LinkCels(), CmdRecordableFlag)
+LinkCelsCommand::LinkCelsCommand() : Command(CommandId::LinkCels())
 {
 }
 
@@ -88,7 +87,7 @@ void LinkCelsCommand::onExecute(Context* context)
     tx.commit();
   }
 
-  if (nonEditableLayers)
+  if (context->isUIAvailable() && nonEditableLayers)
     StatusBar::instance()->showTip(1000, Strings::statusbar_tips_locked_layers());
 
   update_screen_for_document(document);

src/app/commands/cmd_load_mask.cpp

@@ -26,6 +26,7 @@ namespace app {
 
 class LoadMaskCommand : public Command {
   std::string m_filename;
+  bool m_ui = true;
 
 public:
   LoadMaskCommand();
@@ -36,13 +37,16 @@ protected:
   void onExecute(Context* context) override;
 };
 
-LoadMaskCommand::LoadMaskCommand() : Command(CommandId::LoadMask(), CmdRecordableFlag)
+LoadMaskCommand::LoadMaskCommand() : Command(CommandId::LoadMask())
 {
-  m_filename = "";
 }
 
 void LoadMaskCommand::onLoadParams(const Params& params)
 {
+  if (params.has_param("ui"))
+    m_ui = params.get_as<bool>("ui");
+  else
+    m_ui = true;
   m_filename = params.get("filename");
 }
 
@@ -55,7 +59,7 @@ void LoadMaskCommand::onExecute(Context* context)
 {
   const ContextReader reader(context);
 
-  if (context->isUIAvailable()) {
+  if (context->isUIAvailable() && m_ui) {
     base::paths exts = { "msk" };
     base::paths selectedFilename;
     if (!app::show_file_selector(Strings::load_selection_title(),
@@ -70,7 +74,8 @@ void LoadMaskCommand::onExecute(Context* context)
 
   std::unique_ptr<Mask> mask(load_msk_file(m_filename.c_str()));
   if (!mask) {
-    ui::Alert::show(Strings::alerts_error_loading_file(m_filename));
+    if (context->isUIAvailable())
+      ui::Alert::show(Strings::alerts_error_loading_file(m_filename));
     return;
   }
 

src/app/commands/cmd_load_palette.cpp

@@ -37,14 +37,19 @@ protected:
 private:
   std::string m_preset;
   std::string m_filename;
+  bool m_ui = true;
 };
 
-LoadPaletteCommand::LoadPaletteCommand() : Command(CommandId::LoadPalette(), CmdRecordableFlag)
+LoadPaletteCommand::LoadPaletteCommand() : Command(CommandId::LoadPalette())
 {
 }
 
 void LoadPaletteCommand::onLoadParams(const Params& params)
 {
+  if (params.has_param("ui"))
+    m_ui = params.get_as<bool>("ui");
+  else
+    m_ui = true;
   m_preset = params.get("preset");
   m_filename = params.get("filename");
 }
@@ -58,20 +63,20 @@ void LoadPaletteCommand::onExecute(Context* context)
     if (!base::is_file(filename))
       filename = get_preset_palette_filename(m_preset, ".gpl");
   }
-  else if (!m_filename.empty()) {
-    filename = m_filename;
-  }
-  else if (context->isUIAvailable()) {
-    base::paths exts = get_readable_palette_extensions();
+  else if (context->isUIAvailable() && m_ui) {
+    const base::paths exts = get_readable_palette_extensions();
     base::paths filenames;
     if (app::show_file_selector(Strings::load_palette_title(),
-                                "",
+                                m_filename,
                                 exts,
                                 FileSelectorType::Open,
                                 filenames)) {
       filename = filenames.front();
     }
   }
+  else if (!m_filename.empty()) {
+    filename = m_filename;
+  }
 
   // Do nothing
   if (filename.empty())

src/app/commands/cmd_mask_all.cpp

@@ -29,7 +29,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-MaskAllCommand::MaskAllCommand() : Command(CommandId::MaskAll(), CmdRecordableFlag)
+MaskAllCommand::MaskAllCommand() : Command(CommandId::MaskAll())
 {
 }
 

src/app/commands/cmd_mask_by_color.cpp

@@ -15,7 +15,6 @@
 #include "app/color_utils.h"
 #include "app/commands/command.h"
 #include "app/commands/new_params.h"
-#include "app/console.h"
 #include "app/context.h"
 #include "app/context_access.h"
 #include "app/doc.h"
@@ -26,9 +25,6 @@
 #include "app/ui/color_bar.h"
 #include "app/ui/color_button.h"
 #include "app/ui/selection_mode_field.h"
-#include "base/chrono.h"
-#include "base/convert_to.h"
-#include "base/scoped_value.h"
 #include "doc/image.h"
 #include "doc/mask.h"
 #include "doc/sprite.h"
@@ -203,8 +199,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-MaskByColorCommand::MaskByColorCommand()
-  : CommandWithNewParams(CommandId::MaskByColor(), CmdUIOnlyFlag)
+MaskByColorCommand::MaskByColorCommand() : CommandWithNewParams(CommandId::MaskByColor())
 {
 }
 

src/app/commands/cmd_mask_content.cpp

@@ -25,7 +25,6 @@
 #include "doc/image.h"
 #include "doc/layer.h"
 #include "doc/mask.h"
-#include "doc/sprite.h"
 
 namespace app {
 
@@ -38,7 +37,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-MaskContentCommand::MaskContentCommand() : Command(CommandId::MaskContent(), CmdRecordableFlag)
+MaskContentCommand::MaskContentCommand() : Command(CommandId::MaskContent())
 {
 }
 
@@ -87,9 +86,11 @@ void MaskContentCommand::onExecute(Context* context)
   }
 
   // Select marquee tool
-  if (tools::Tool* tool = App::instance()->toolBox()->getToolById(
-        tools::WellKnownTools::RectangularMarquee)) {
-    ToolBar::instance()->selectTool(tool);
+  if (context->isUIAvailable()) {
+    if (tools::Tool* tool = App::instance()->toolBox()->getToolById(
+          tools::WellKnownTools::RectangularMarquee)) {
+      ToolBar::instance()->selectTool(tool);
+    }
   }
 
   update_screen_for_document(document);

src/app/commands/cmd_merge_down_layer.cpp

@@ -13,16 +13,12 @@
 #include "app/cmd/flatten_layers.h"
 #include "app/commands/command.h"
 #include "app/context_access.h"
-#include "app/doc.h"
-#include "app/doc_api.h"
 #include "app/doc_range.h"
 #include "app/modules/gui.h"
 #include "app/pref/preferences.h"
 #include "app/tx.h"
-#include "doc/blend_internals.h"
 #include "doc/layer.h"
 #include "doc/sprite.h"
-#include "ui/ui.h"
 
 namespace app {
 
@@ -35,8 +31,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-MergeDownLayerCommand::MergeDownLayerCommand()
-  : Command(CommandId::MergeDownLayer(), CmdRecordableFlag)
+MergeDownLayerCommand::MergeDownLayerCommand() : Command(CommandId::MergeDownLayer())
 {
 }
 

src/app/commands/cmd_modify_selection.cpp

@@ -18,16 +18,12 @@
 #include "app/modules/gui.h"
 #include "app/pref/preferences.h"
 #include "app/tx.h"
-#include "base/convert_to.h"
 #include "doc/algorithm/modify_selection.h"
 #include "doc/brush_type.h"
 #include "doc/mask.h"
-#include "filters/neighboring_pixels.h"
 
 #include "modify_selection.xml.h"
 
-#include <limits>
-
 namespace app {
 
 using namespace doc;
@@ -52,13 +48,15 @@ private:
   Modifier m_modifier;
   int m_quantity;
   doc::BrushType m_brushType;
+  bool m_ui;
 };
 
 ModifySelectionCommand::ModifySelectionCommand()
-  : Command(CommandId::ModifySelection(), CmdRecordableFlag)
+  : Command(CommandId::ModifySelection())
   , m_modifier(Modifier::Expand)
   , m_quantity(0)
   , m_brushType(doc::kCircleBrushType)
+  , m_ui(true)
 {
 }
 
@@ -80,6 +78,11 @@ void ModifySelectionCommand::onLoadParams(const Params& params)
     m_brushType = doc::kCircleBrushType;
   else if (brush == "square")
     m_brushType = doc::kSquareBrushType;
+
+  if (params.has_param("ui"))
+    m_ui = params.get_as<bool>("ui");
+  else
+    m_ui = true;
 }
 
 bool ModifySelectionCommand::onEnabled(Context* context)
@@ -92,7 +95,7 @@ void ModifySelectionCommand::onExecute(Context* context)
   int quantity = m_quantity;
   doc::BrushType brush = m_brushType;
 
-  if (quantity == 0) {
+  if (quantity == 0 && m_ui && context->isUIAvailable()) {
     Preferences& pref = Preferences::instance();
     ModifySelectionWindow window;
 

src/app/commands/cmd_move_cel.cpp

@@ -12,7 +12,6 @@
 #include "app/commands/command.h"
 #include "app/context_access.h"
 #include "app/ui/timeline/timeline.h"
-#include "ui/base.h"
 
 namespace app {
 
@@ -25,13 +24,13 @@ protected:
   void onExecute(Context* context) override;
 };
 
-MoveCelCommand::MoveCelCommand() : Command(CommandId::MoveCel(), CmdUIOnlyFlag)
+MoveCelCommand::MoveCelCommand() : Command(CommandId::MoveCel())
 {
 }
 
 bool MoveCelCommand::onEnabled(Context* context)
 {
-  return App::instance()->timeline()->isMovingCel();
+  return context->isUIAvailable() && App::instance()->timeline()->isMovingCel();
 }
 
 void MoveCelCommand::onExecute(Context* context)

src/app/commands/cmd_move_mask.cpp

@@ -18,19 +18,15 @@
 #include "app/doc_api.h"
 #include "app/i18n/strings.h"
 #include "app/modules/gui.h"
-#include "app/pref/preferences.h"
 #include "app/tx.h"
 #include "app/ui/doc_view.h"
 #include "app/ui/editor/editor.h"
 #include "app/ui_context.h"
-#include "base/convert_to.h"
 #include "doc/mask.h"
-#include "doc/sprite.h"
-#include "ui/view.h"
 
 namespace app {
 
-MoveMaskCommand::MoveMaskCommand() : Command(CommandId::MoveMask(), CmdRecordableFlag)
+MoveMaskCommand::MoveMaskCommand() : Command(CommandId::MoveMask())
 {
 }
 

src/app/commands/cmd_new_brush.cpp

@@ -52,13 +52,13 @@ private:
   void selectPencilTool();
 };
 
-NewBrushCommand::NewBrushCommand() : Command(CommandId::NewBrush(), CmdUIOnlyFlag)
+NewBrushCommand::NewBrushCommand() : Command(CommandId::NewBrush())
 {
 }
 
 bool NewBrushCommand::onEnabled(Context* context)
 {
-  return context->checkFlags(ContextFlags::ActiveDocumentIsWritable);
+  return context->isUIAvailable() && context->checkFlags(ContextFlags::ActiveDocumentIsWritable);
 }
 
 void NewBrushCommand::onExecute(Context* context)

src/app/commands/cmd_new_file.cpp

@@ -64,7 +64,7 @@ protected:
 // static
 int NewFileCommand::g_spriteCounter = 0;
 
-NewFileCommand::NewFileCommand() : CommandWithNewParams(CommandId::NewFile(), CmdRecordableFlag)
+NewFileCommand::NewFileCommand() : CommandWithNewParams(CommandId::NewFile())
 {
 }
 

src/app/commands/cmd_new_frame.cpp

@@ -10,28 +10,18 @@
 #endif
 
 #include "app/app.h"
-#include "app/color.h"
 #include "app/commands/command.h"
 #include "app/commands/params.h"
-#include "app/console.h"
 #include "app/context_access.h"
 #include "app/doc_api.h"
 #include "app/i18n/strings.h"
 #include "app/modules/gui.h"
 #include "app/tx.h"
-#include "app/ui/doc_view.h"
-#include "app/ui/editor/editor.h"
 #include "app/ui/main_window.h"
 #include "app/ui/status_bar.h"
 #include "app/ui/timeline/timeline.h"
-#include "app/ui_context.h"
-#include "doc/cel.h"
-#include "doc/image.h"
 #include "doc/layer.h"
 #include "doc/sprite.h"
-#include "ui/ui.h"
-
-#include <stdexcept>
 
 namespace app {
 
@@ -57,7 +47,7 @@ private:
   Content m_content;
 };
 
-NewFrameCommand::NewFrameCommand() : Command(CommandId::NewFrame(), CmdRecordableFlag)
+NewFrameCommand::NewFrameCommand() : Command(CommandId::NewFrame())
 {
 }
 

src/app/commands/cmd_new_frame_tag.cpp

@@ -9,7 +9,6 @@
   #include "config.h"
 #endif
 
-#include "app/app.h"
 #include "app/cmd/add_tag.h"
 #include "app/commands/command.h"
 #include "app/context.h"
@@ -18,8 +17,6 @@
 #include "app/ui/tag_window.h"
 #include "doc/tag.h"
 
-#include <stdexcept>
-
 namespace app {
 
 using namespace doc;
@@ -33,14 +30,14 @@ protected:
   void onExecute(Context* context) override;
 };
 
-NewFrameTagCommand::NewFrameTagCommand() : Command(CommandId::NewFrameTag(), CmdRecordableFlag)
+NewFrameTagCommand::NewFrameTagCommand() : Command(CommandId::NewFrameTag())
 {
 }
 
 bool NewFrameTagCommand::onEnabled(Context* context)
 {
-  return context->checkFlags(ContextFlags::ActiveDocumentIsWritable |
-                             ContextFlags::HasActiveSprite);
+  return context->isUIAvailable() && context->checkFlags(ContextFlags::ActiveDocumentIsWritable |
+                                                         ContextFlags::HasActiveSprite);
 }
 
 void NewFrameTagCommand::onExecute(Context* context)

src/app/commands/cmd_new_layer.cpp

@@ -21,9 +21,7 @@
 #include "app/console.h"
 #include "app/context_access.h"
 #include "app/doc_api.h"
-#include "app/find_widget.h"
 #include "app/i18n/strings.h"
-#include "app/load_widget.h"
 #include "app/modules/gui.h"
 #include "app/pref/preferences.h"
 #include "app/restore_visible_layers.h"
@@ -48,7 +46,6 @@
 #include "new_layer.xml.h"
 
 #include <algorithm>
-#include <cstdlib>
 #include <cstring>
 #include <string>
 
@@ -99,7 +96,7 @@ private:
   Place m_place;
 };
 
-NewLayerCommand::NewLayerCommand() : CommandWithNewParams(CommandId::NewLayer(), CmdRecordableFlag)
+NewLayerCommand::NewLayerCommand() : CommandWithNewParams(CommandId::NewLayer())
 {
 }
 
@@ -267,16 +264,8 @@ void NewLayerCommand::onExecute(Context* context)
     bool afterBackground = false;
 
     switch (m_type) {
-      case Type::Layer:
-
-        if (m_place == Place::BeforeActiveLayer) {
-          layer = api.newLayer(parent, name);
-          api.restackLayerBefore(layer, parent, activeLayer);
-        }
-        else
-          layer = api.newLayerAfter(parent, name, activeLayer);
-        break;
-      case Type::Group: layer = api.newGroupAfter(parent, name, activeLayer); break;
+      case Type::Layer: layer = api.newLayer(parent, name); break;
+      case Type::Group: layer = api.newGroup(parent, name); break;
       case Type::ReferenceLayer:
         layer = api.newLayer(parent, name);
         if (layer)
@@ -311,6 +300,15 @@ void NewLayerCommand::onExecute(Context* context)
 
     ASSERT(layer->parent());
 
+    // Reorder the resulting layer.
+    switch (m_place) {
+      case Place::AfterActiveLayer:  api.restackLayerAfter(layer, parent, activeLayer); break;
+      case Place::BeforeActiveLayer: api.restackLayerBefore(layer, parent, activeLayer); break;
+      case Place::Top:
+        api.restackLayerAfter(layer, sprite->root(), sprite->root()->lastLayer());
+        break;
+    }
+
     // Put new layer as an overlay of the background or in the first
     // layer in case the sprite is transparent.
     if (afterBackground) {

src/app/commands/cmd_new_sprite_from_selection.cpp

@@ -23,8 +23,6 @@
 #include "doc/sprite.h"
 #include "fmt/format.h"
 
-#include <cstdio>
-
 namespace app {
 
 using namespace doc;
@@ -39,7 +37,7 @@ protected:
 };
 
 NewSpriteFromSelectionCommand::NewSpriteFromSelectionCommand()
-  : Command(CommandId::NewSpriteFromSelection(), CmdUIOnlyFlag)
+  : Command(CommandId::NewSpriteFromSelection())
 {
 }
 

src/app/commands/cmd_onionskin.cpp

@@ -8,7 +8,6 @@
   #include "config.h"
 #endif
 
-#include "app/app.h"
 #include "app/commands/command.h"
 #include "app/context.h"
 #include "app/doc.h"
@@ -20,7 +19,7 @@ using namespace gfx;
 
 class ShowOnionSkinCommand : public Command {
 public:
-  ShowOnionSkinCommand() : Command(CommandId::ShowOnionSkin(), CmdUIOnlyFlag) {}
+  ShowOnionSkinCommand() : Command(CommandId::ShowOnionSkin()) {}
 
 protected:
   bool onChecked(Context* context) override

src/app/commands/cmd_open_browser.cpp

@@ -22,6 +22,7 @@ public:
   OpenBrowserCommand();
 
 protected:
+  bool onEnabled(Context* context) override;
   void onLoadParams(const Params& params) override;
   void onExecute(Context* context) override;
   std::string onGetFriendlyName() const override;
@@ -31,10 +32,15 @@ private:
   std::string m_filename;
 };
 
-OpenBrowserCommand::OpenBrowserCommand() : Command(CommandId::OpenBrowser(), CmdUIOnlyFlag)
+OpenBrowserCommand::OpenBrowserCommand() : Command(CommandId::OpenBrowser())
 {
 }
 
+bool OpenBrowserCommand::onEnabled(Context* context)
+{
+  return context->isUIAvailable();
+}
+
 void OpenBrowserCommand::onLoadParams(const Params& params)
 {
   m_filename = params.get("filename");

src/app/commands/cmd_open_file.cpp

@@ -19,14 +19,12 @@
 #include "app/file/file.h"
 #include "app/file_selector.h"
 #include "app/i18n/strings.h"
-#include "app/modules/gui.h"
 #include "app/pref/preferences.h"
 #include "app/recent_files.h"
 #include "app/ui/status_bar.h"
 #include "app/ui_context.h"
 #include "app/util/open_file_job.h"
 #include "base/fs.h"
-#include "base/thread.h"
 #include "doc/sprite.h"
 #include "ui/ui.h"
 
@@ -35,7 +33,7 @@
 namespace app {
 
 OpenFileCommand::OpenFileCommand()
-  : Command(CommandId::OpenFile(), CmdRecordableFlag)
+  : Command(CommandId::OpenFile())
   , m_ui(true)
   , m_repeatCheckbox(false)
   , m_oneFrame(false)

src/app/commands/cmd_open_group.cpp

@@ -32,7 +32,7 @@ protected:
   // std::string onGetFriendlyName() const override;
 };
 
-OpenGroupCommand::OpenGroupCommand() : Command(CommandId::OpenGroup(), CmdRecordableFlag)
+OpenGroupCommand::OpenGroupCommand() : Command(CommandId::OpenGroup())
 {
 }
 

src/app/commands/cmd_open_in_folder.cpp

@@ -25,7 +25,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-OpenInFolderCommand::OpenInFolderCommand() : Command(CommandId::OpenInFolder(), CmdUIOnlyFlag)
+OpenInFolderCommand::OpenInFolderCommand() : Command(CommandId::OpenInFolder())
 {
 }
 

src/app/commands/cmd_open_script_folder.cpp

@@ -33,8 +33,7 @@ protected:
   void onExecute(Context* context);
 };
 
-OpenScriptFolderCommand::OpenScriptFolderCommand()
-  : Command(CommandId::OpenScriptFolder(), CmdUIOnlyFlag)
+OpenScriptFolderCommand::OpenScriptFolderCommand() : Command(CommandId::OpenScriptFolder())
 {
 }
 

src/app/commands/cmd_open_with_app.cpp

@@ -25,7 +25,7 @@ protected:
   void onExecute(Context* context) override;
 };
 
-OpenWithAppCommand::OpenWithAppCommand() : Command(CommandId::OpenWithApp(), CmdUIOnlyFlag)
+OpenWithAppCommand::OpenWithAppCommand() : Command(CommandId::OpenWithApp())
 {
 }
 

src/app/commands/cmd_options.cpp

@@ -37,7 +37,6 @@
 #include "app/ui/sampling_selector.h"
 #include "app/ui/separator_in_view.h"
 #include "app/ui/skin/skin_theme.h"
-#include "app/util/render_text.h"
 #include "base/convert_to.h"
 #include "base/fs.h"
 #include "base/string.h"
@@ -655,6 +654,7 @@ public:
     }
 #endif
 
+    useSelectionToolLoop()->setSelected(m_pref.experimental.useSelectionToolLoop());
     flashLayer()->setSelected(m_pref.experimental.flashLayer());
     nonactiveLayersOpacity()->setValue(m_pref.experimental.nonactiveLayersOpacity());
 
@@ -886,6 +886,7 @@ public:
     m_pref.asepriteFormat.celFormat(gen::CelContentFormat(celFormat()->getSelectedItemIndex()));
 
     // Experimental features
+    m_pref.experimental.useSelectionToolLoop(useSelectionToolLoop()->isSelected());
     m_pref.experimental.flashLayer(flashLayer()->isSelected());
     m_pref.experimental.nonactiveLayersOpacity(nonactiveLayersOpacity()->getValue());
     m_pref.quantization.rgbmapAlgorithm(m_rgbmapAlgorithmSelector.algorithm());
@@ -2177,7 +2178,7 @@ private:
   std::string m_installExtensionFilename;
 };
 
-OptionsCommand::OptionsCommand() : Command(CommandId::Options(), CmdUIOnlyFlag)
+OptionsCommand::OptionsCommand() : Command(CommandId::Options())
 {
   Preferences& preferences = Preferences::instance();
 

src/app/commands/cmd_palette_editor.cpp

@@ -11,6 +11,7 @@
 
 #include "app/commands/command.h"
 #include "app/commands/params.h"
+#include "app/context.h"
 #include "app/i18n/strings.h"
 #include "app/ui/color_bar.h"
 #include "base/replace_string.h"
@@ -23,6 +24,7 @@ public:
   PaletteEditorCommand();
 
 protected:
+  bool onEnabled(Context* context) override;
   void onLoadParams(const Params& params) override;
   bool onChecked(Context* context) override;
   void onExecute(Context* context) override;
@@ -34,14 +36,18 @@ private:
   bool m_background;
 };
 
-PaletteEditorCommand::PaletteEditorCommand()
-  : Command(CommandId::PaletteEditor(), CmdRecordableFlag)
+PaletteEditorCommand::PaletteEditorCommand() : Command(CommandId::PaletteEditor())
 {
   m_edit = true;
   m_popup = false;
   m_background = false;
 }
 
+bool PaletteEditorCommand::onEnabled(Context* context)
+{
+  return context->isUIAvailable();
+}
+
 void PaletteEditorCommand::onLoadParams(const Params& params)
 {
   m_edit = (params.empty() || params.get("edit") == "switch" ||