Implementation could simply reuse ExifTool; it supports reading.In browser mode, panels EXIF, IPTC-IIM and XMP are not existing
In view mode, overlay information is staying empty, and XMP rating & color do not show up (probably because not written to file)
In both modes, setting XMP rating & color are not written into the file despite settings > metadata > export rating in XMP metadata is ticked, same for color label. Hence, renaming/moving/copying the file means rating & color are lost.
Attached an example file created with Panorama Studio v4.0.2
BTW, this forum does not allow *.exr attachements
