Description of the new feature/enhancement

I'm trying to use a patterned GIF as a background image, but didn't find an option to tile it. A new option for setting the stretch mode to tile the image would be great. It would be a nice option as images like these simply don't look good under other modes or require extra effort to make them work, such as editing them and tiling them manually.

Here's the GIF I'm trying to use:

Proposed technical implementation details (optional)

Allow setting the "backgroundImageStretchMode" setting in the profiles to something like "tile". This would display the image at its native resolution from the top-left corner, repeating the image across the background until it's entirely covered.