@Ali-Hussain I'm doing something similar to this but with the borders. It would be easy to adapt this so that it sets the background instead.
It's essentially jQuery doing the legwork, but works perfectly.
after migrating data from another forum engine to nodeBB at Maxon - @Jay-Moonah - we found that the "In categories" field in Advanced Search is empty.
We've never experienced it before, and I wonder if it's a theme issue or a data migration issue.
PS. dbsearch indexes have been successfully recreated.
Sounds like this might be an import issue that can be fixed on the next run, could you please include this in a direct email?