Cool Justin, thanks for letting us know that. You're doing a great job with Mate & keep up the good work.
I'll shoot you 3 small issues that I encountered...
1) Right click on the Brisk menu resulted in no options. Therefor, couldn't adjust it's properties.
2) There was one program that, when minimized to the system tray, would highlight behind the black panel bar when subsequently clicked on. Don't remember what program it was...but could have been pithos or veracrypt. You could see a bit of the white highlight behind the system tray area of the panel.
3) No matter how I tried to configured an HP wifi printer (cups & hplip installed & cups enabled and running in systemd) the printer would not be present in any application (Firefox, Pluma, etc) when trying to print. However, the printer did show as configured and default on the printer settings page, as well as the cups web interface. Auto, manual IPP, SMB connections to the printer's WAN address with no luck at any. The new driverless method appeared to find and set the printer, but still no printer found when trying to print from any application. I switched over to Budgie, and the new driverless method worked like butter.