The possibilities using image markers within the ArcGIS Pro symbology dialog is awesome. However, if I add a tint to that image in the symbology dialog and export the map to PDF the resulting pdf document displays the original marker. This behaviour doesn't happen if exporting to other formats such as JPEG. In my mind this should be consistent. I'm trying to publish this as a map series (only available as PDF export.)
Original File:
ArcGIS Pro Symbology Dialog:
Result of PDF export:
JPEG export: