The commit-title-graph option is somewhat confusing: when switching the way how graphs are rendered with ':toggle commit-title-graph' or with the default bindings, 'G', the new setting is shown as 'set commit-title-graph = v1' and similar in the status line. However, the command ':set commit-title-graph = v1' doesn't work ('Unknown option name: commit-title-graph'). Instead, 'set main-view-commit-title-graph = v1' must be used as a command or in config file. This also isn't obvious from the documentation.