For the newbs.
Slick? No. But gitk does the job, like any one of the other 100 billion free Git UI viewers out there
gitk master HEADMany IDEs are also implementing this now (e.g. VS Code, Eclipse. Most free IDE GIt implementations are still crap, but that is the future, because you want to edit, view history, edit, view history, commit, edit.
Ciro Santilli