LOADSPRITE "sprite_original.bmp", 100
SAVESPRITE "sprite_saved.bmp", 100
any pixel with an rgb of 255, 0,128 is saved as 128,0,255
oops. Also for PNG images? That's the transparent pixels, right?
A png image using the transparent alpha of 0 instead of a transparent pink colour saves fine.
Found it this night. Bugfix is in the next update.