I came across a video about this, and I thought the interface looked unique. There are some rough spots, and I’d prefer if the spacing was even tighter, but I like it otherwise.
I’m not familiar with Linux theming / customization at this level, so I can’t comment on it past that. The repo link below has the video:
https://github.com/caelestia-dots/shell
Some more screenshots:
Where can I find the first wallpaper?
I found a version here, maybe someone can reverse search to find a higher quality version: