different color for new branch
Let's have this MWE:
```
E:>git clone git@mydomain.cz:data/my_project.git
E:>cd my_project
E:\my_project>git add .
E:\my_project>git commit -m "V0 reconnaissance"
E:\my_project>git push
E:\my_project>git add .
E:\my_project>git commit -m "V1 reconnaissance2"
E:\my_project>git push
E:\my_project>git add .
E:\my_project>git commit -m "V2 reconnaissance3"
E:\my_project>git push
E:\my_project>git add .
E:\my_project>git commit -m "V4 based on physics"
E:\my_project>git push
E:\my_project>git checkout -b truck_inner_stimer master
E:\my_project>git add .
E:\my_project>git commit -m "stimer v1"
E:\my_project>git push -u origin truck_inner_stimer
E:\my_project>git add .
E:\my_project>git commit -m "stimer v2"
E:\my_project>git push -u origin truck_inner_stimer
E:\my_project>git add .
E:\my_project>git commit -m "stimer v3"
E:\my_project>git push -u origin truck_inner_stimer
```
and then I've visited web of the project and selected repository/graph.
The graph looks like following figure.

Would be nice to see last 3 commits of new branch in different color.
issue