We all know what "B" does in the tile editor. It makes the tile ready for 256 color editing.
Well, "Shift+B" would do the same thing, but automatically replace all "0" colors(or colors at the beginning of the csets) with the transparent (X). This would save time when editing sprites or whatever.
Shift+B in tile editor
So, if the shift key is held down during a bit plane conversion, you want it to change the first color of the current cset to color 0? Done.
Awesome. 😃 That'll save some work when editing sprites.
EDIT: lol look how redundant I am