Change Color Scheme in Office 2013?

Hi All,

First let me apologize, I am of limited technical capability.  I just installed Office 365 (Feb 1, 2013) and found the really light color of the ribbon area to be highly distracting.  I was hoping I could get it back to the soft blue color I eventually got use to in Office 2010.  But I could only figure out how to get light gray or dark gray.  I am absolutely convinced these are not the only options Microsoft would build into the program (I mean who would intentionally do that?).  But as I say, I am limited in my capabilities.  Could someone tell me how to change the color scheme?

Thanks a bunch,

Jeff