<https://forum.affinity.serif.com/index.php?/topic/125349-trying-to-adjust-speech-bubbles/#comment-686815>
<http://schema.org/text>
"...or, with the shape selected, choose the Node Tool. (Or choose the Node Tool and then select the shape.)\n "
<https://forum.affinity.serif.com/index.php?/topic/125349-trying-to-adjust-speech-bubbles/>