The mis-match of colors was originally a mistake, but after a lot of back-and-forth I decided to keep it.  There's a subtle message in it that supports the one given by the fact that unlocks on one side still work when the other team is ascendant.   There are also historical reasons why the red color in particular cross-contaminates between sides.
I think the solution, and let me know what you think of this DF, is for the menu items to change visually when you have enough points to buy them.  So the first time you get 100 Left points, for example, the top Left menu item gets a golden border and maybe subtly blinks between two similar shades of pink. Ditto 100 Right points - top Right menu gets golden border, etc etc.