Does there need to be another visual difference between lines?

[TylerLeonhardt]

Testing #217398

I was looking at this state:

and I realized that except for the color and the commit message, I don't really know which branch the sdfg commit originally came from. The hover doesn't say so.

Can we include the branch somewhere maybe? Also, I'm not sure if this is really needed, but I wanted to mention it. I know there's an accessibility requirement that says color can't be the only difference for things that need to be distinguished between each other... and maybe there's enough information to understand the difference between each branch... but I wonder if the lines could be solid/dotted/dashed (depending on the branch) for accessibility.