Following <https://wiki.ubuntu.com/SoftwareCenter#Genre>, Ubuntu Software Center puts anything with "Categories=Settings" into the "Themes & Tweaks" department.
If tangerine-properties is the only visible interface for Tangerine, then I suggest it should have "Categories=AudioVideo", not "Categories=Settings".
Following <https:/ /wiki.ubuntu. com/SoftwareCen ter#Genre>, Ubuntu Software Center puts anything with "Categories= Settings" into the "Themes & Tweaks" department.
If tangerine- properties is the only visible interface for Tangerine, then I suggest it should have "Categories= AudioVideo" , not "Categories= Settings" .