32b, 24b Bitmaps vs. 16b, 8b, 4b Bitmaps

[ji]

I know GE supports 24b (w/ indexed trans from the corner pixel) and that it also supports 32b (w/ alpha trans). However, I was curious if it supported smaller (indexed) bitmaps. The reason I ask is for in the interest in saving executable space.

[makslane]

Regardless the input image depth, Game Editor will choose the best compression/velocity balance for your images.

[ji]

So is that to say that if I add an 8b bitmap it will convert it to a 24b, or does that mean that if I upload a 24b it will automatically convert to an 8b (if there are few enough colors)?

[makslane]

In the Pocket PC all images are converted to 16bpp