dop2000: I tried your capx but the screen turns totally black. don't know why.
rojohound: I want to trace over a complex layout to have another layout to set as invisible and to use as collision box during the game.
I know that you can use Tiled to design a tilemap with irregular or complex shapes and then save it as tmx to have the collision boxes preserved but I'm more comfortable using Photoshop or Gimp, both of them have more functions and tools than Tiled.