Click the colour to get colour points, spend the colour points to get upgrades in the shop. Upgrade 1 doubles your Points Per Click. The other upgrades say what they do.
Took a week to make for how simple this is. 11/17/20 - Full release! 11/19/20 - Changed upgrades 2-4 to be infinitely buyable. (leaderboard does nothing) 10/05/21 - Added New CPPS Upgrades.