Hints for ngraph-gtk in ubuntu

com.github.htrb.ngraph-gtk ⚙ amd64

asv-relation-display-length-value-invalid
:35 - medium
This `display_length` item contains an invalid display length. Its value must either be a shorthand string, or positive integer value denoting logical pixels. Please refer to the AppStream specification for more information on this tag.

asv-screenshot-media-url-not-secure
:21 - http://hito.music.coocan.jp/ngraph/ngraph_609_linux.png
Consider using a secure (HTTPS) URL to reference this screenshot image or video.
asv-nonstandard-gnome-extension
:25 - 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-invalid-child-tag-name
:68 - Found: description - Allowed: release
Tags of this name are not permitted in this section.
asv-invalid-child-tag-name
:80 - Found: description - Allowed: release
Tags of this name are not permitted in this section.
asv-invalid-child-tag-name
:101 - Found: description - Allowed: release
Tags of this name are not permitted in this section.
asv-invalid-child-tag-name
:113 - Found: replace - Allowed: release
Tags of this name are not permitted in this section.
asv-invalid-child-tag-name
:114 - Found: replace - Allowed: release
Tags of this name are not permitted in this section.
asv-invalid-child-tag-name
:115 - Found: replace - Allowed: release
Tags of this name are not permitted in this section.
asv-invalid-child-tag-name
:116 - Found: replace - Allowed: release
Tags of this name are not permitted in this section.
asv-invalid-child-tag-name
:117 - Found: replace - Allowed: release
Tags of this name are not permitted in this section.