When I press the “New message” button from my inbox, the panel with the components to write the new message appear to the bottom of the screen reader view, but focus remains in the “New message” button. No warning is given that the panel has been opened, focus remains in the same place where it was before pressing the button.
Suggestion: Move focus to the first field that accepts user input in the “New message” component, like it is done when replying and creating new topics.