This door stops the screen from scrolling past it. But if the player touches it, the door will open, dragging the player and the screen to the other side and then closing. Useful if you want a "separate room screen" effect. Must be placed on a screen border or Mario will die when he walks through.
Got rid of tilemap and tile properties tables to reduce insertion size, and made it possible for the user to set the sprite palette through the CFG. Included a JSON file for new PIXI (CFG is still present for old PIXI users). Added SA-1 support.