I had a similar problem when modifying graphics for a different game.Originally posted by Darkmoor_Dragon
hmmm..struggling here...
You have to use the ingame pallette ( ingame.PAL) to get the exact game colurs on the bmps.... done that and the image displays... but...
Each file has a referencing palette.. in this case T-DIVEBOMBER C-MIN L-1 as a 4x4 bmp (in the pallette folder) - which is the reference for the transparency colour (I assume).. but if you edit , or change, the original image file (T-DIVEBOMBER A-STAND C-MIN L-1.bmp) it places it ingame without the trans (as shown above).
Changing the palette reference bmp doesnt make any difference ... so.. what am i missing?
I think what's happening is that the file formats are slightly different, and it's hard to match them up so the game doesn't recognize certain colors as being transparent. Your best bet is to open up an already made sprite file (after copying it), modify that file with the new graphics, then save it (NOT save AS) to use the same format.
That's worked in my experience at least, when you don't know exactly which format to use.