I've noticed there are no overlay highlights in yellow or blue showing up in my html reports. I'm mostly just looking at the sql report by post time, but I do like to scroll the html report as part of the morning routine.
My system definitions have Highlight ML Overlays checked. The colors have also been set.
I just cant recall ever seeing an overlay highlighted since I started running cards in November?
Background color for MLOR3 highlighting is something I did for playlist file mode html reports only.
I did not program that for sql reports. Instead of displaying background colors - when I did the programming for sql html reports, I made the MLOR3 number itself available for display on the report.
(I thought being able to see the MLOR3 value rather than a background color based on it was more insightful.)
Edit:
Making a horse "light up" on the sql report when MLOR3 is at or above a certain value is something that is 100% doable - Just create a sql UDM based around MLOR3 and use the Mark Chars function on the UDM Wizard Modify Screen.