[tpmx]

I've noticed people either prefer dark or light when working. It's very binary.

In my 20s/early 30s I really preferred a dark environment when coding. It's how I "grew up" with my first job back in the 90s, based in a cellar.

At some point around being ~36-38 years old I randomly started feeling that I preferred a light environment - a view outside would be really nice too.

I think it's mostly due to what you're used to.