How to put pictures on each subcategory banner?

[Lilly]

@Pandabear There is also this component, which may offer some other options that may suit your use case:

Discourse Category Headers theme component

This theme component provides a number of enhancements for the Discourse category header. The ‘standard’ Discourse category header is displayed at the top of each category page, above the navigation links and list of topics. It is normally only visible if a category logo image has been uploaded in the category settings. The header displays the logo and a short description of the category, taken from the first paragraph of the ‘About the… category’ topic. This theme component provides the foll…