After searching and playing with the settings for over an hour I decided to ask. Google searches give you the advice to "Change your theme", genius!
Other say to edit the theme files...
I am in System Settings>Application Appearance>Colors and no matter what I change the Application Launcher background color doesn't change. I see nothing labeled Menu or anything close to that under Common Colors/View/Window etc.
I may have missed one but after changing a zillion things I give up.