I’m making available my calendar solution with Sunday highlighted on the bezel.
Eight layers are used. The first layer shows the classic calendar. Another seven layers allow you to highlight Sunday with respect to the specific layout of the days of the week.
Calendar - rotation: (-#Dd#*11.6129032258)
Cal 0 - 6 rotation: (-#Dd#*11.6129032258)
Cal 0 - Opacity: $((#Dd#+0)%7)==#DOW#?100:0$
Cal 1 - Opacity: $((#Dd#+1)%7)==#DOW#?100:0$
...
Cal 6 - Opacity:$((#Dd#+6)%7)==#DOW#?100:0$
I am attaching the source file for Affinity Designer. If anyone needs individual pictures, maybe I can be talked into it. But AD is great and for a few bucks.
Hope this helps someone.