Can I make the Keyboard Viewer more readable I am using the Keyboard Viewer in recorded video screenshots to demonstrate the action of keystrokes on an app.
The keyboard window is small, the produced video is compressed, and as a result it is very hard for many people in the audience to perceive what keys are pressed during the presentation (pressed keys are outlined in dark brown/purple on a black background).
The previous UX for the Keyboard Viewer was a lot more accessible and legible.
I am not expressing an opinion - tools like WebAIM give this color combination a Contrast Ratio Fail rating across all three categories, with a very low 2.02:1 contrast rating against the surrounding background color.
Current Keyboard Viewer on Catalina:

Can you tell which keys are pressed? I didn't think so
Previous Keyboard Viewer on High Sierra:

Can you tell which keys are pressed? Yes you can! Yes you can!
Is there a way to use the more accessible, gray Keyboard Viewer on Catalina?
Given that Apple has always had very inclusive Accessibility Guidelines, I am hoping that I am missing a setting somewhere and that this poor UX decision can be reversed.
In Catalina Keyboard Viewer, click the Gear icon in the upper right corner of the window. This opens a pop-up window where you can select the Appearance setting of the Keyboard View window to either Dark or Light, independent of the System Appearance setting:



When you choose Dark Mode, a pressed key is outlined in red.
When you choose Light Mode, a pressed key is outlined in red in addition to having a grey overlay, which is what you are looking for.