Hints for gucharmap in main

gucharmap.desktop ⚙ amd64

asv-cid-desktopapp-is-not-rdns
gucharmap.metainfo.xml:31 - gucharmap.desktop
The component ID is not a reverse domain-name. Please update the ID to avoid future issues and be compatible with all AppStream implementations. You may also consider to update the name of the accompanying .desktop file to follow the latest version of the Desktop-Entry specification and use a rDNS name for it as well. In any case, do not forget to mention the new desktop-entry in a <launchable/> tag for this component to keep the application launchable from software centers and the .desktop file data associated with the metainfo data.

asv-cid-missing-affiliation-gnome
gucharmap.metainfo.xml:31 - gucharmap.desktop
The component is part of the GNOME project, but its ID does not start with GNOME's reverse-DNS name ("org.gnome").
asv-nonstandard-gnome-extension
gucharmap.metainfo.xml:324 - kudos
This tag is a GNOME-specific extension to AppStream and not part of the official specification. Do not expect it to work in all implementations and in all software centers.
asv-content-rating-missing
gucharmap.metainfo.xml -
This component has no `content_rating` tag to provide age rating information. You can generate the tag data online by answering a few questions at https://hughsie.github.io/oars/
asv-developer-info-missing
gucharmap.metainfo.xml -
This component contains no `developer` element with information about its author.