Dye

Dye
in Scribblenauts Unlimited
Type	Tool, Drawing, Liquid
Behavior	Makes objects Purple (Pre-Unlimited) or Chartreuse when used.
Synonyms	Aniline
Available in	Scribblenauts, Super Scribblenauts, Scribblenauts Remix, Scribblenauts Unlimited, Scribblenauts Unmasked, Scribblenauts Showdown, Scribblenauts Mega Pack

Dye is a green ball. It will turn things purple if it's dropped on something. In Scribblenauts Unlimited it works the same way as a Paint Brush, adding the chartreuse adjective instead.