The first 195 images correspond to unit IDs in units.dat, and are the outlines that appear in the selected unit panel in the middle of the hud while playing.
- e.g. 0 = Terran Marine, 32 = Firebat, 84 = Protoss Observer.
Note: Some images are omitted and have placeholder images that read "BLANK" because they are not selectable.
The rest of the images are the buttons used for unit commands. Order pattern unknown.