Unity Greeter - Update indicator menus so that they match the Unity Greeter style

[John Lea]

Make the indicator menu backgrounds in the Unity Greeter 50% transparent so that the match the style of the of the header. See attached file "greeter_menu.png", but only look at the header and the menu, ignore the rest of this design.

[Andrea Cimitan (cimi)]

To fix this, we need compositing in the greeter, and some patches to the indicator code.

[Michael Terry (mterry)]

Can you expand on that cimi? We don't have compositing right now, I know. But what do you mean by patches in indicator code?

[Andrea Cimitan (cimi)]

The menu is rendered by the indicator library, that means we can't style from the greeter. We have to either export something and style in html from the greeter, or patch the indicator library to provide a style for the greeter (ugly). The latter will still not work without compositing, because the menu is a toplevel gtkwindow, thus requires RGBA colormap through the compositor.

[Michael Terry (mterry)]

Marking Won't Fix for raring, as I likely won't be able to get to this (getting this off my status radar). If someone else wants to pick it up, be my guest and re-open!

Further, this requires intense work like adding a compositor to the greeter.

Also, this doesn't seem Critical. Re-aligning as Medium.