AppStream Report for PureOS - Issues for xawtv in landing/main

Errors

icon-not-found
The icon 'emblem-debian' was not found in the archive. This issue can have multiple reasons:
- The icon is not present in the archive.
- The icon is in a wrong directory.
- The icon is not available in a suitable size (at least 64x64px)
- On Debian and Ubuntu, the icon is a symlink. The generator cannot read symlinks on these distributions - make the icon a real file.
To make the icon easier to find, place it in /usr/share/icons/hicolor/<size>/apps and ensure the Icon= value of the .desktop file is set correctly.

asv-app-categories-missing
org.linuxtv.xawtv.metainfo.xml -
This component is in no valid categories, even though it should be. Please check its metainfo file and desktop-entry file.

asv-unknown-tag
org.linuxtv.xawtv.metainfo.xml:30 - updatecontact
Found invalid tag. Non-standard tags should be prefixed with `x-`. AppStream also provides the <custom/> tag to add arbitrary custom data to metainfo files. This tag is read by AppStream libraries and may be useful instead of defining new custom toplevel or `x-`-prefixed tags if you just want to add custom data to a metainfo file.
asv-content-rating-missing
org.linuxtv.xawtv.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
org.linuxtv.xawtv.metainfo.xml -
This component contains no `developer` element with information about its author.