Help:HighlightLinksInCategory

Highlight Links in Category is an extension that adds a CSS class to links pointing to members of a category.

Usage
If you want to use this extension on your wiki, you will need your Wiki Manager to configure it, even if you're an admin. Give your WM a list of categories and the classes they should add. Configuration is done via  (see the MediaWiki.org page for full usage documentation).

Use cases
The most general use case for this extension is to highlight disambiguations, any wiki can make use of this. Links could also be given flairs via a  selector, for example to flair all PC content with a PC icon and all console content with a console icon. An advanced use case could be to use this as an alternative to TippingOver and add a clickable  to links that lazily loads content via JavaScript.

Limitations
If you want to show (for example) a hero's portrait next to their name, this extension will not work because the same class must be displayed across all links in a category. This extension also doesn't load classes in the Category namespace. If you define a large number of category classes and have very high-content pages, you may run into the template include size limit more quickly than otherwise, though using short class names can abate this issue.