It seems like a couple people are having a hard time taking the theme in a non-literal or abstract direction, so I thought it might be a good idea to dump ideas you aren't going to use, but are still interesting.
EX1: 3 of the Power Rangers died in a freak accident (fire, school shooting, plane crash, etc) and now a monster is attacking Angel Grove! Play as two of the Mega Zord body parts and fight evil!EX2: A game where you collect letters and the only colors that appear are the ones you can spell. EX3: Everything starts off tinted in a certain hue. As you collect specific items, more colors and interaction options are unlocked.Share your ideas and help each other out. To help with keeping on topic, please don't comment if you aren't contributing an idea.
A game where you only have 3 colours/blocks(RGB) and plays like minecraft/terraria.
Ok, that's a pretty stupid idea, let me try again:And abstract game where colours are resources and you can use them to build units which you can choose the shape and colour of. (assuming you have enough colour) Different colours give different stats eg red == attack, blue == defence, green == speed.Quite possible too, but that doesn't work too well in an Rts I should think.
A game where you are a karma chameleon and have to hide by changing colour to match your surroundings then dish out a big dose of karma.
Slap people round the head! Drop a £5 note! Reward people for being good or bad- the choice is yours. But beware being an evil karma chameleon. It will get harder and harder for you to change colour as your soul becomes black .But you should get a proportional score multiplier.
Like a good multiplier for successive positive karma, and a bad that goes up faster, but maxes out slightly lower than good.