Use all paragraphs of the category description in the banner

Is it normal that it takes only the first paragraph? Could it take all paragraphs?

Yes, that’s expected. I pulled the existing concept of “Category description” from Discourse, which by default only takes the first paragraph of that post (I believe this same text is used on the /categories page). I’m not sure if there’s an easy way to take the full text of the category introduction post for this.