linuxmint/Cinnamon — pull request #531 by M4he (2012-03-15 12:10:22+00:00)
Title: Let the theme handle expo background

The new gradient background in expo doesn't look nice on resolutions like 1080p because of the color banding.

I created a new style class called "expo-background" so it's possible to style it via the theme file or keeping the desktop wallpaper by just leaving the style class blank within the theme file.