- Special brush types
 - Special brush delete
 - LOVE 
 - LOLZ
 - Property edit
 - Saving, loading, thumbnailing, etc
 - HEAT/COOL
 - Streamlines
 - Grid
 - Sign moving
 - Electron fancyness with glass, fire_r-g-b now out of scope
 - Grav fancyness, use current frame index to determine colour, not globals!
 - Emp flash
 - Stickman HP
 
 To do:
 See TODO's
 Char * and string, hmm....
 Vectors for things like signs, stamp list, etc where appropriate