I am trying to modify default Metro theme for RibbonView in a very simple way - by changing the main color of the theme to something different. Apparently I can not find the way of finding the template for Application Button DropDown Content. What i want to do is to change the color of the blue bar which appears over the content of the popup window that appears after clicking the application button. Can anyone direct me, where should I look for the template? Thank in advance!