I have a map of the counties in Colorado. The counties are all in the same color. How do I change the colors of some of the counties? One color will represent a trait, another color will represent a trait in that county, etc. I have attached a picture of the map I am working with.
Thank you.
So I think you want to symbolize your polygon layer using a random color scheme based on some attribute in your table, even the name of the county
Drawing a layer using categories—ArcMap | Documentation (arcgis.com)
Not sure if I understood your question correctly.
You could use a categorical symbology based on the trait. Remove the traits in the symbology that you don't want to specify any unique color. They will be symbolized as "all other values".
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