The one with fewest colours. I have no idea why people really love colour vomits on their screens. Reading and writing code consumes enough mental CPU that syntax highlighting needs to be a helpful tool, not an overstimulation. Might be my ADHD. The most ridiculous ones are those that have a different colour for methods, variables, free standing functions, classes vs structs. Do people really go "ah, name's yellow, must be a struct"?

Ideally only keywords, numbers, strings would be highlighted, and symbols de-highlighted. And comments need to stand out. Theme designers really like making comments almost impossible to read for some reason.

I tend to prefer muted colours, which are extremely rare to find in the VSCode marketplace. My favourite light is Alabaster by Nikita Propokov, but the best is the dark one One Monokai 80s

- https://marketplace.visualstudio.com/items?itemName=tonsky.t...

- https://marketplace.visualstudio.com/items?itemName=axiomati... (there might be a more active fork)

These days I use Emacs with the excellent Modus Operandi/Vivendi by Prot (in muted colours mode), and experimenting with ef-themes by the same author.