Is there a pce palette I can import available somewhere?
Just use RGB values that are in steps of 36.
32 also works.
so if youre in photoshop you just make colors whose RGB values are:
0, 36, 72, 108, 144, 180, 216, 252
Example:
R: 252
G: 180
B: 72
No need to import anything
just remember that for sprites you only have 16 colors to work with, so you will want to make sure in Photoshop that you make an indexed mode image, set it to 16 colors max, and then set yourself up your palette.
and save as a PCX!
Always remember too that color 0 will not actually show up on the PCE. It's transparent, so use a dumb color that you'd never use on the actual sprite. I usually use death magenta (252, 0, 252)