Hello Joe

I compared the files style.min.css of the project forum and your test installation in a diff tool. I used WinMerge for the comparision. As feared, there are far more differences between the rules. Some differences are due to your forum's own rules, but others are due to the lack of transfer from the newer versions.

I have also exported a diff file, but reading it is very confusing. I will therefore not include it here. Choose a diff tool yourself. I can recommend WinMerge for Windows and Meld for Linux. Better you compare the data by yourself because you know your requirements best.

Tschö, Auge