Forest reading — Mist around a forest

After importing the board, open it, then Settings → Design → Background → Custom Image.
Choose backgrounds/forest-mist.jpg from this pack and click Upload.

Photo by Austin Schmid on Unsplash
Source: https://unsplash.com/photos/green-forest-covered-with-fog-zQ-y4Gj8194
License: https://unsplash.com/license

The photograph is uploaded unchanged; ReadyTab uses its normal centered cover crop.
Backgrounds are stored separately and are not included in board JSON import/export.