eled to help assistive technology users understand each toolbarâ€™s purpose.

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### What to do

* For each element with a `"toolbar"` role, either set the value of the `aria-labelledby` attribute to the `id` value of any visible text that appropriately and uniquely describes that toolbar's purpose;
* **Or**, use the `aria-label` attribute to add an invisible, unique, non-empty label to an element with the `"toolbar"` role.

