Changing your theme
Recently, we received the follow question and I thought I would share the answer with everyone:
Is there a way to change the baby blue color to something more customized or at least revert back to the same color scheme of Outlook 2003?
To change your Office theme, click “Tools” in the toolbar, then “Options”, and then on the “Mail Format” tab, click “Editor Options” as shown below:

Then select a different theme (Blue, Silver or Black) next to “Color scheme” on the “Popular” tab:

Note: the theme is Office-wide – changing it in Outlook will change Word, PowerPoint, etc. too.
Hope that helps!
Melissa MacBeth
Outlook Program Manager