Easy way to access CATEGORY_TITLES/CATEGORY_DESCRIPTIONS from tags.tmpl

[Kwpolska]

Discussed in #3583

^{Originally posted by kai-tub November 5, 2021}
Hi :)

Thank you again for providing such a nice static site generator!
I am working on customizing my personal theme and the current goal is to have a category-based landing page.

With CATEGORY_TITLES/CATEGORY_DESCRIPTIONS I can update the category information into a prettier version.
These variables are then used when the category (index) page itself is rendered.
Now I would like to be able to re-use the information in the tags.tmpl page such that I can use the pretty category name as a link with the description to provide extra information.
The category name and description would then be combined into a card with an optional image for easier navigation.

Is there an easy way to accomplish this?
Or am I too stuck on the tags.tmpl and should just create a different template and try to use that?