Desert studio — Death Valley dunes

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

Photo by Jacob Castle on Unsplash
Source: https://unsplash.com/photos/the-sun-is-setting-over-the-sand-dunes-ui_tS2Yd-i0
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.