How to change the theme of Office 2013

For your info.... I write user support documentation for an IT Department for a government organization that employs 6,000 people.  We are just now getting ready to deploy Office 2013, and I installed it yesterday so I could write about the changes from Office 2010 to 2013.  One of the best features about OneNote is the soft color hightlights, (not the dark colors as in Word) and also the use of other options to add color with the Quick steps, pencils etc., and of course the ability to organize the "colored" tabs. I believe the Color tabs in OneNote is the main reason it's become so popular. Easy to colorcode. The color ribbens with color contrast helps the users to find what they need quickly and helps them be more efficient when creating a document.  The gray is ok for an option for a background, but offering 3 to 5 more soft colors with colors icons in the ribben helps users to find what they need quickly.  

Microsoft has the majority of customers of the business world.  Think before you take away useful tools, change is only good if it helps the user be more efficient at there job, and gives them a small joyful moment throughout the day while having to sit and stare at a boring gray computer screen all day. Give them a break and make things a little brighter and fun without slacking on efficiency and production.

Thanks, C

Very Helpful.  Thanks!

There needs to be at least one with a high contrast.  The current schemes are all 'washed out'.

Office on Mac is the best solution right now if the colors are a big issue as it is for me. I also have a huge problem with he huge step back that was taken with windows 8 with all the flat colors and square design. Microsoft took 1,000,000 steps backwards with this one.

I bet that their next release of Office 2015 they are going to go all out retro adopting the look and feel of the first version of Lotus 123 complete with low resolution monochrome graphics and a whoping two monochrome screen color options.

Green and amber in imitation of the available computer monitors back in the 80's. Then they will eliminate the windows, and oh yes, they will make sure that the mouse is not available for use, that's what those arrow keys are in the keyboard for!