I notice some C-set can be edited in the main palette editor (12,13 & 14) but don't appear correctly when using the tile editor. I understand that one of them (was it 14?) is reserved for boss colors. So whats the deal with the other 2 not being consistent from the Palette editor and the Tile Editor?
Also is there a practical reason for not being able to use palette 15? I understand not being able to change it, but shouldn't you be able to use it when editing tiles?
