If you are using a color capable terminal emulator, you can use the Color Picker to set the color of certain aspects of ProTopColor Picker (0)
These are colors are defined by your terminal emulator, such as default foreground and default background. They can only be changed in the terminal emulator settings.
These are the 64 colors (0 to 63) that are defined in $PROTOP/etc/protermcap.protop. You can assign any of these colors to various aspects of ProTop, such as the header, label, browse, etc.
Simply tab through the list of ProTop RT aspects and change the associated number to the number of the color demonstrated on the right.
Type "x" to save and exit or "q" to quit without saving.
Change default ProTop RT startup colors
Use the PTCOLORS variable in bin/localenv (or bin\localenv.bat on Windows; if not there make a copy from bin/localenv.x or bin\localenv.batx) to change the colors used by ProTop RT at startup.
If you don't want to set your own colors, use one of the presets: colorful, monochrome, accessible, or dark mode, by typing the associated letter. For example, if you want accessible colors, type "a".
Don't forget to type "x" to save your color settings, or type "q" to quit without saving.