Suggestion: support importing .pal palettes, just like Pro Motion NG #49
Description
So the idea is to convert them internally in memory and add the missing features.
Pro Motion NG refers to the following page I came across earlier: https://lospec.com/palette-list, you can find many of the palettes you want there.
Fyi, promotion NG has 18 similar palettes built in, where Pepto C64 overlaps and 1 is dpaint, you should add this palette too!