Ein- und ausklappbare Unterkategorien in der Seitenleiste

[nathank (Nathan Kershaw)]

Das hast du sicher gesehen:

What is the name of this theme?

What is the name of Unreal Engine’s community theme? Or how can i make a theme like that? Unreal Engine Forum

Und das:

What Themes are being used for these Discourse forums?

This is a heavily customised forum. Something like this will use plugins as well as theme modifications. This is something that our partners can help you with; Discourse can help too of course, if you are on the Enterprise plans

Teile ruhig deinen Code. Natürlich ist die Herausforderung bei solchen Dingen die laufende Wartung.