merge commits: Greyed out or highlighed, why?

[Rubén]

I'd like to know why, in the commits view, I see some merge commits with the M greyed out whereas others have it in color. How can this be setup or how are they detected?

Thanks in advance.

[Rubén]

This behavior is based on the commit comment. It must contain following lines:

Conflicts:
    src/app.cpp

If bitbucket detects this pattern in the commit comment, the merge commit will be highlighted in commits view. Otherwise, it will appear as greyed-out.