As WPM is a monitoring tool first and foremost it's user base is probably to a large degree technicians based in 24/7 NOC's or similar groups. For that reason, WPM would ideally have an option for a "dark" theme.
Dark in this case would mean an opposite on how WPM currently looks. Instead of white, the background should be dark grey and any bright colors changed out for dim ones. This is much easier for the eyes @ 3am and would fit much better alongside our dashboards from other tools.
If you have to start somewhere, the Operation View is the most important part as that's the one we have up for monitoring all the time while other parts of WPM is less important.
Absolutely makes sense from a work environment perspective. I'll get back to you when we have planned this into a release.