Map of transition-skip places

Map of all transitions that can be reached inbounds through which one can get via Transition-Skip methods (considering different states of the room (and if the door has an enemy-kill-count shell on it), but neglecting if the door actually is next to to OoB or not):

http://i.imgur.com/Wa1TTZq.png

At the with green colour marked doors, the room state does not matter, and one can (given suitable items) skip through the door, at orange doors, the possibility of Transition-Skips depends on the door-type/room-state. Transition-Skips are impossible at the doors with pink colour.