Typescript Files .ts do not have default syntax highlighting, and it is not obvious how to fix this

When I open ".ts" files, I am told that a highlight definition is not found for this file.

This seems to be a bug to me, considering another bug QTBUG-63600 indicates that support was added, and supposedly syntax highlighting.

When I go to the directed path,  Options > Text Editor > Generic Highlighter > Download Definitions, I am also given no options to download anything. It says "highlight definitions are provided by the Kate Text Editor, but it is not obvious what I am supposed to do with information.

After downloading Kate libraries and applications from the ubuntu repositories, nothing has changed.

I am sure I will figure out what to do eventually, however its not clear how I can remediate this issue.