<https://forum.affinity.serif.com/index.php?/topic/83362-color-variation-on-masks-when-exporting/#comment-441384>
<http://schema.org/dateCreated>
"2019-04-17T09:11:25+0000"^^<http://schema.org/Date>
<https://forum.affinity.serif.com/index.php?/topic/83362-color-variation-on-masks-when-exporting/>