A color variable is a visual variable that defines the color of a symbol based on a numeric data value returned from a field or expression. If an expression is used, the color can be defined from a color ramp with a set of pre-defined color ranges. Numeric data should be normalized before visualizing it with color, especially for polygon layers.
Color visual variables require the following:
- A reference to a data value either from a field name, or an Arcade expression.
- At least two color stops that match data values to colors. The colors of symbols with data values between the designated stops are interpolated linearly.
Also known as
- Color visual variable
- Opacity variable
- Rotation variable
- Size variable