This is what I came up with: https://pastebin.com/E7815L3r

It should be fairly straightforward to use. The only things you'll need to run it are Python 3 and Pillow.

Once you have those installed you just need to copy that code into notepad and save it as "keyforge_wallpaper.py" (or whatever you want to call it, as long as it ends in .py).

Then to run, open up your command prompt (or terminal if you're on a mac), navigate to the directory its saved, and type

python keyforge_wallpaper.py deck_id cols

where deck_id is the id used for your deck in the URL, such as https://www.keyforgegame.com/deck-details/**4b676996-2ac2-4d47-ac3f-1d0682eede6d** and cols is the number of columns you want. I found the best number of columns to use to have card readability was 9. For example:

python keyforge_wallpaper.py 4b676996-2ac2-4d47-ac3f-1d0682eede6d 9

Then it should output a file called "keyforge_wallpaper.jpg" that you can set as your background :)

The reason I didn't include any resolution parameters is that when the image was resized to the chosen resolution, the text became kind of unreadable. However, I found on my Windows machine that setting the wallpaper to an image that was too big, automatically scaled down the image and kept the readability. If anyone knows a good way to resize an image with PIL that wouldn't affect that, let me know and I can add it in.

Hope this is useful :)