Coloring Candy is awesome!  It will change colors after every move.  This is similar to the Chameleon Candy in Candy Crush Saga, a game also produced by King.  People might find this little tirck annoying because it changes way too much and might rage quit, but it actually isn't that bad.  It only switches between two different colors, and it can be a good way to earn special candies if you know how to strategize with this little gizmo.  Most coloring candy can be found inside marmalade, a tiny blocker that can be disengaged with a match of that color or a match next to it.  Then people do that strategizing.