Hello
I would like to point you to a new wrapper for UIA. It's called FlaUI and can be found here: https://github.com/Roemer/FlaUI
It contains some ideas from TestStack.White but has a complete new code base. One of the main advantages of it is that the developer can decide to use UIA2 or UIA3 with the same API. It also provides its own inspect tool "FlaUInspect" which can be downloaded from the github page as well.
It has already full support for all patterns, input and many wrappers for controls (like ComboBox and such) so it is ready to be used in production (and already is).
I'd really like to hear some feedback and/or improvement ideas.
Thank you
Roman