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49a37d198e
The non-empty alt text for the icons of the context header buttons like the "Message" and the "Add contact" buttons cause redundant information to be read twice by screen readers when the buttons are rendered with the icon and the button name. The icons need to be set as decorative by setting an empty alt text for them. * The presentation role is also unnecessary. * The alt text is needed when the button gets rendered without the button name text.