How to change the theme of Office 2013

Horrible. Back to 2010 also. Including Visio and Project... a waste.

Very disappointed in the lack of themes in Office 2013. Overall Office 2013 seems to be bland.

Is this an attempt to adhere to the "minimalist" fad?

Thank you for the feedback on Office’s new look. We are actively collecting, sorting and reading through feedback on Office 2013’s design and User Experience. As the audience for Office 2013 grows, we are being mindful of patterns and pain points that emerge from user feedback. While we do not have any additional Themes planned at this time, it is an issue we are watching very closely.

I gave Microsoft feedback a long time ago when I was testing the Preview version of Office 2013. I told Microsoft that the new white theme is terrible, and it strains my eyes. I understand they were trying to minimalize it a little bit, but the outcome is plain ugly. Buttons seem to run together. The change in 2007 from gloss to matte was great, and everything looked clean. Everything was eye pleasing and easy to find.

In my feedback, I said that Microsoft needed to add a black color scheme like in Office 2010. Well, they basically ignored my feedback (the dark gray is still very light), and now people are staying with  or reverting back to 2010, including myself. They still need to add a black theme as soon as possible (or change the light gray theme to the current dark gray theme and extremely darken the current dark gray theme). They should also add some themes with color to go hand in hand with Windows 8, or add an option for Office to match your system's window color that is set in Personalization.

I meant to say the change in 2010 was great. Also, I forgot to add something else. What is up with the ALL-CAPS in the headers? I know it's supposed to be Metro, but take it out. It makes the interface even more ugly. It is a fact that words in all-caps are harder to read.

Wow....I find it a little astonishing that Microsoft is seriously pushing people AWAY from it's new Office product by doing something as stupid as not allowing users to change or add their own custom colors to Outlook and Office. It's so difficult to look at, especially on large monitors! I honestly haven't even got to see how it works because I can't get past the overall brazenness of the interface's colors. Something as simple as the colors are seriously driving people away. 

Are they just seriously trying to lose even more customers? wow...