[GNC] gnucash 5.0 register color settings don't save

[John Griessen]

I just had an easy time compiling on linux mint 21.1 and alternating colors in the register is a preference I like.  I tried 
changing it and don't see a save button and when the edit-->preferences-->register dialog box is closed, the colors don't appear 
and when edit-->preferences-->register dialog box is opened again, the settings are not checked.

Ideas on working around this?  Is it the same with your compile?

-- 
John Griessen