grafana/docs/sources/shared/visualizations/standard-options.md

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Standard options	This file is used in the following visualizations: bar chart, bar gauge, candlestick, canvas, gauge, geomap, histogram, pie chart, stat, state timeline, status history, table, time series, trend

Standard options in the panel editor pane let you change how field data is displayed in your visualizations. When you set a standard option, the change is applied to all fields or series. For more granular control over the display of fields, refer to Configure overrides.

Option	Description
Unit	Choose which unit a field should use.
Min/Max	Set the minimum and maximum values used in percentage threshold calculations or leave these field empty for them to be calculated automatically.
Field min/max	Enable Field min/max to have Grafana calculate the min or max of each field individually, based on the minimum or maximum value of the field.
Decimals	Specify the number of decimals Grafana includes in the rendered value.
Display name	Set the display title of all fields. You can use variables in the field title.
Color scheme	Set single or multiple colors for your entire visualization.
No value	Enter what Grafana should display if the field value is empty or null. The default value is a hyphen (-).

To learn more, refer to Configure standard options.