Merge pull request #1 from Seldaek/master

Update fork
Merge pull request #2 from Seldaek/master

Update from fork
Change color levels

Changed the Emergency color because the background was the same color as the foreground.
And also changed the Alert and Critical colors to increase the contrast between these levels.
Merge pull request #324 from tiagobrito/master

refs #320 Fix same color in background and in foreground