We have released a beta adding functionality to specify a color and character to modify a choice's marker.
This is what it looks like:
Sample form: form.zip (7.6 KB)
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marker-color
is the name to use as a GeoJSON property or choice list column to specify a color for a choice's marker. Any hex color is allowed. -
marker-symbol
is the name to use as a GeoJSON property or choice list column to specify a symbol for a choice's marker. Any single unicode character is allowed.
Let us know what you think!