Commit color yellow instead of green

### Describe the bug
In the FAQ and https://github.com/jesseduffield/lazygit/discussions/1622 I read that yellow means it's not in the master branch. I have created a new repo (there is only the main branch) and the commit colors are yellow instead of green. Am I missing something?

### To Reproduce
Steps to reproduce the behavior:

1. Create a new repo (cloned from an empty remote).
2. Add commits to the 'main' branch
3. Observe yellow color

### Expected behavior
Commits should be green

### Screenshots

### Version info:

* `lazygit --version`: commit=80223c7fbbd0b86631a988834cbe88e267bb0bd9, build date=2025-11-01T09:43:19Z, build source=binaryRelease, version=0.56.0, os=windows, arch=amd64, git version=2.52.0.windows.1
* `git --version`: git version 2.52.0.windows.1

### Additional context
I assumed the issue is main vs. master, but I have other repos where the color of commits is green and where the name is 'main' as well. I also tried switching context (switch to other repositories in [1]) and come back to the problematic repository - it didn't help.