See attached screenshot, example of Event Summary, Last 7 Days.
The event background colors are controlled via an Events.css file located in the IIS web root directory. There is an additional "Events.css" found in /Orion/Styles/, but that one does not appear to be used. Each event has a number code associated to it. For example, an "Alert Triggered" is Event 5000. "Alert Reset" is event 5001. The background colors of events have never really appealed to me, short of the DOWN, UP, and Managed colors. Has anyone customized their event backgrounds? If so, mind sharing what choices you went with? I've been tinkering around and can't seem to make up my mind.