If you print a single Category - play numbers will be auto-assigned a dark blue (almost black) background.

If you print multiple Categories - play numbers will be auto-assigned color coding (dark blue, red, orange, and so on).

Select custom colors - the Category edit info window now include a a color palette. Tap the color you'd like to use for your custom print color coding (for example, if want to use Red to indicate your No Run Zone plays).

Print your Wristbands or Call Sheet - select the Play Label Color Coding "Custom" option in the print settings window. The printed play numbers will display the custom color coding you selected for the Categories you're printing.