When I installed KDE on Ubuntu 14.10, it messed up some of the Unity settings like the text size and theme colors. I finally managed to completely remove it from my computer, and the text is back to normal, but my theme colors are still off.
Only the Ambiance theme is different, specifically, the menu bar drop-down text is a dark grey. I've tried a few different methods of fixing it, none of which worked. I created another user account to diagnose the problem and the Ambiance theme is normal in the other account. How can I get the Ambiance theme back to it's default? (I've tried reinstalling light-themes.)
Similar to this question, except the solution doesn't work for me.
This is how it looks in the admin account:
This is how it looks in the new account and how it should look:
EDIT: I later installed Wallch and it messed up the icons to always be the gnome icons, regardless of what theme or icons I chose with Unity Tweak Tool. This was also fixed with the solution described below. I don't actually know if it was Wallch that caused the problem.