I'm not completely sold on these changes for the inactive window.  The RGB values that you've chosen for `CEF_COLOR_BACKGROUND_INACTIVE` and `CEF_COLOR_FRAME_OUTLINE_INACTIVE` change the non-client areas of the window to a light gray when the application is deactivated.  This looks very odd on Windows 7, especially if you're using the default theme.  The change was more subtle and acceptable when we kept the same dark colors for inactive windows.
![changes](https://cloud.githubusercontent.com/assets/3752015/2991551/93f809ba-dc7f-11e3-851c-6909ae837ceb.png)