I think the switch from blue to red comes too early, and is very alarming. Richard said: but wait, there's amber in between. However, to my eye, the orange is just as alarming as the deeper red that comes after it.
What's a good middle colour? Yellow?
I'll ask my local color wizards...
commit 31a9ffd29398d9102670930a92dfd3af4d3601c5 Author: Richard Hughes <richard> Date: Sun Jul 26 21:15:30 2009 +0100 Make the orange icons yellower. Fixes rh#512962