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Description

The toolbox tree and flyout tree are missing these attributes which I think are required to follow best practice. For most screen readers you can get enough context from the region change, but for some reason, JAWS does not announce the region change and the trees themselves don’t have labels. I have tried changing the JAWS settings (general verbosity and web page specific verbosity) to no avail. This change makes the NVDA readout more verbose, but I think this is necessary to support anyone using JAWS.

It’s particularly bad in MakeCode without the tree labels as we move from the Basic category to the Basic flyout where the first item is the Basic FlyoutLabel, which is very confusing.

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