<https://forum.affinity.serif.com/index.php?/topic/83362-color-variation-on-masks-when-exporting/#comment-439470>
<http://schema.org/dateCreated>
"2019-04-11T15:57:19+0000"^^<http://schema.org/Date>
<https://forum.affinity.serif.com/index.php?/topic/83362-color-variation-on-masks-when-exporting/>