You can manage your custom palettes in the Custom Palette Organizer. Corel Painter names custom palettes "Custom 1", "Custom 2," and so on. For ease of use, you can rename them.
Corel Painter keeps your custom palettes from one session to the next. You can also save a custom palette to a file. For more information, see Saving, exporting, and importing custom palettes.
You can delete obsolete custom palettes or those you don’t use very often.