Workaround pixel vs costumes

There are 3 blocks:

COSTUME: Return the x costume of the current sprite

NEW COSTUME COLOR RGB W x H: Return a costume of size width x height with uniform color RGB

COMBINE PIXELS FROM COSTUME TO COSTUME: Add pixels of costume1 into costume2 and return the resultas a costume.

Example: You can make a 1st costume from pentrails (you can write on the screen "HELLO WORLD" in red), make a new costume with background color of your choice dimension of the costume HELLO WORLD and combine 2 costumes into one !

Not perfect but it's a start !