The page is for images that can be used for background images on Wikitree Free Space Pages and Profiles. Green to match the color within the page.
- https://pixabay.com/images/search/seamless/: Pixabay License; Free for commercial use; No attribution required
Click on one of the images then scroll down to where it says Set as Background Image on the right hand side. Follow the instructions there to set the image as your profile background.