color.decorate.<slot>::
Use customized color for 'git log --decorate' output. `<slot>` is one
of `branch`, `remoteBranch`, `tag`, `stash` or `HEAD` for local
- branches, remote-tracking branches, tags, stash and HEAD, respectively.
+ branches, remote-tracking branches, tags, stash and HEAD, respectively
+ and `grafted` for grafted commits.
color.grep::
When set to `always`, always highlight matches. When `false` (or