The Blowington theme is a recreation of the editor theme of a, perhaps quite controversial person, Jonathan Blow. I find it to be quite visually pleasant and nice to the eyes.
While I have tried my best to recreate it, it is not entirely 1:1 in terms of accuracy.
Please feel free to create issues about any specific parts of the theme you don't like and I will take a look at it.
The font in these examples is Berkeley Mono, it is a paid font but I like it. Consider buying it if you like it.
I also recommend using JetBrains Mono or Iosevka.
You can use a font of your own choice, of course.
The theme is licensed as MIT.