Using the pen extension, I created a short script to generate this pattern. Simple but satisfying. If you leave it running for long enough, in theory, it could cover the entire backdrop. Full screen not recommended, it makes everything pixelated, and it just looks better regular size.
This is actually an old concept from my offline scratching days, and I thought it would be cool to share! Change Log 1.0 Current version. Note: turns out the the lines probably will not actually cover the whole backdrop. Hard to say. May change in 1.1.