The UI is still in its infancy which means this is the perfect time to make sure keyboard and screen reader users have a good time using the UI. Currently, they don't. The majority of controls can't be tabbed to, a lot of elements have no accessible labels ...

Please do better. This is almost embarrassingly bad, currently, and it's not rocket science to get this right. Please take a look here for pointers: https://docs.juce.com/master/group__juce__gui__basics-accessibility.html