Be careful with these! Internal APIs are not covered by version policies. They can break or be removed between minor versions!

If you need an internal API stabilized please file an issue.

Environmental variables

tmux format separator

New in version 0.11.0b0.

LIBTMUX_TMUX_FORMAT_SEPARATOR can be used to override the default string used to split tmux(1)’s formatting information.

If you find any compatibility problems with the default, or better yet find a string copacetic many environments and tmux releases, note it at