There has been some progress on minor issues.
Major issues still need to be addressed but those will require discussion and decisions.
One of the main issues reported in the first testing round is that there are too many tab stops.
Currently, navigation through all the interface works with tabs meaning ALL the controls are tabbable.
Considering how some of the Gutenberg UI parts are actually ARIA widgets, ideally, they should implement focus as recommended by the ARIA spec and the ARIA Authoring Practices. For example, toolbars and menus should be navigated with arrows only.
There’s definitely a