Comment 12 for bug 970024

There is no synchronisation issue.
But there is just too much stuff to be done between the initial background color and the actual background image is drawn.
There are 2 things that take longer than 0.2 seconds: launching Canberra and playing the startup sound takes about 0.26 seconds and LightDM.get_layout () (line 81 in menubar.vala) takes about 0.20 seconds.
So there was about a half second gap between those two backgrounds, unfotunately a ~0.1 second gap still remains.

The fact that the standard purple image is loaded at all, is a problem caused by appending the *other user to the user_list(which is the first user added, so the purple image is drawn) and then removing it later(which triggers a background redraw of the actual image).
But still, unity-greeter will fade from the initial background color to the actual background image, because the fade time is set and i am not able to disable it and reset it later. :(
But in my opinion that is no problem, the fade in actually looks nice.