Themes

Please allow us to change the backgrounds to different colors. I am excited about the update but all this bone white has me as angry as the Windows 10 update. Office pulled this same color crap in 2013 and it was so hard to read with nothing but white everywhere, I stopped using it within two months. Changong the tabs is a great idea, but no one looks at the tabs for very long. It's all about the background, we can't be stuck with white, it's killing my eyes.