Please check out the low-level properties log.graph.author.maxLength and log.graph.author.truncateLength.

The .tar.gz bundle already lets nearly every user run in on nearly every Linux.

You may try adding the line
smartgit.ssh.impl=sshj
to smartgit.properties.

Do you know that you can create own theme files?

Do you know that you already can use Ctrl+Space to write file names?

I wouldn't got that far with ahead/behind jigsaw pieces. Just the information whether a tag exists locally and remotely as well as equal/different would be enough for the majority of the use cases.

I think, request 270 covers this topic.

Please try log.graph.author.maxLength and log.graph.author.truncateLength.

Because the terminal is just a default, but freely editable custom tool, this would mean to allow to add any external tool to the toolbar. I thought, there would have been a request already covering this topic, but couldn't find. Would you mind me to change the title?