try decompressing the file, go to open as > tile, offsetting it by 272, then messing with the settings. seems they have some garbage at the starts n ends. not totally sure where the palettes are unfortunately, but they could be in the archives as well.
EDIT: the palettes might be at the end of the data for the images. for pics the size of the screen, opening the decompressed file as a palette and offsetting it by 49480 seems to work
EDIT: the palettes might be at the end of the data for the images. for pics the size of the screen, opening the decompressed file as a palette and offsetting it by 49480 seems to work