Screen Reader Support
Popovers are accessible to screen reader users.
Screen readers announce when popovers open.
Expected announcement: "Settings, button" when trigger is focused, followed by "Settings, dialog" or "Settings, tooltip" when popover opens.
Popover content is announced appropriately.
Screen readers announce all content within the popover, allowing users to understand the full context.
Closing actions are communicated clearly.
Screen readers announce close buttons appropriately, and the popover closing is communicated when Escape is pressed or close button is activated.