When building the flatpak we get lots of messages (one per installed icon) that look like warnings, and I have no idea how to get rid of them.
Not exporting share/icons/kube/places/22/folder.svg, wrong prefix Not exporting share/icons/kube/places/22/mail-folder-outbox.svg, wrong prefix Not exporting share/icons/kube/places/22/mail-folder-outbox-inverted.svg, wrong prefix Not exporting share/icons/kube/places/22/folder-inverted.svg, wrong prefix Please review the exported files and the metadata