<https://forum.affinity.serif.com/index.php?/topic/130322-halo-on-edge-of-selections/#comment-716843>
<http://schema.org/text>
"Thanks, I'll take another look, but that last attempt didn't use selections or masking.\n "
<https://forum.affinity.serif.com/index.php?/topic/130322-halo-on-edge-of-selections/>