Do you prefer 2 or 4 spaces for Compose files? Or don't care?

I do not expect Compose to change anything here. I will be rather surprised if people change indent policies because they happen to be using Compose. IMHO, use whatever your project has standardized on for other reasons, whether it is from an official style guide or something more home-grown.

I prefer 2 spaces for pretty much any language I program with, but many projects use 4 spaces and it is fine for me. Now I am exploring compose and I had an urge to change .editorconfig for the folder with compose files. Now most lines have 8 spaces indentation and I like it more than 16 spaces previously 🙂

I am not trying to convince anyone, just in case 🙂

Google has an "official" opinion on this: https://developer.android.com/kotlin/style-guide#indentation