sugarlabs/sugar — pull request #37 by manuq (2013-05-02 13:38:15+00:00)
Title: Add alpha UI for background cp section

This patch exposes to the UI control over the alpha level of the
background image. It supports levels of 20% 40% 60% 80% and 100%
(utilizing the icons from the network view). Because there is no 25%
icon, I made 20% be the default level.