first of all thank you very much for this really useful plugin. I've been searching for it for a long, long time.
I often work with 1-bit depth BMP images (Black/White).
I noticed a little thing that brings to some visualization problems if I use some programs: in the BMP file the color table is saved as an array of 32 bit integers (8 bits for Red, 8 bits for Green and 8 bits for Blue, then other 8 bits for reserved purpose). This reserved bits are set to 0xFF, but if I'm right they should be set to 0.