Missing support for shift lock
Some people prefer to have a shift lock rather than a caps lock, i.e. the caps:shiftlock xkb option, which can be enabled on the fly like this:
setxkbmap -option caps:shiftlock
or configured in the ui with "Caps Lock toggles ShiftLock (affects all keys)".
With such keyboard layouy configuration, Orca however does not announce the shift lock, and the caps lock key does not work as Orca key.
I will submit a merge request for this.