You can update your forums intro text and visuals in the Forum settings:
- Go to Pages → click Forum to open settings.
- Description: Click inside the rich-text editor to add or format text (it supports formatting like bold, links, and embedded images).
- Images: Click the small arrow to expand an Image section (for example, Image 1 or Image 2).
- Click Upload to add or replace the image used in the forum layout.
- Click Save or Apply.
Video walkthrough: