Once installed, you can use the screenshot reader feature within the toolbar.
Simply click the icon and just drag your mouse over any text in an image or diagram, and it will be read aloud.
img src="https://i.ibb.co/xLYP26n/Screenshot-reader-3-copy.png" alt="Read&Write screenshot reader feature in action, with a pink box drawn over a diagram, so students can hear words read aloud." border="0">