I have gotten a workaround, but the Limitations piece isn't setup yet, as I having figured out yet how to do that piece. I create a custom Widget that makes the SQL call and builds the colors.
Attached is an example Widget I created. Note that the SQL is pulled from a View I created. This is works to avoid to having Admin privileges for a report.
You would put this in the c:\inetpub\SolarWinds\Orion\NetPerfMon\Resources directory and modify per your own SQL.
Let me know if this helps.