# tmux_window:layout/0

- **Package:** libtmux_erlang
- **Language:** Erlang
- **Kind:** typealias
- **Source:** https://github.com/libtmux/libtmux-erlang/blob/d1b6308440cf9eb8f6647e7ae434bce60e849368/apps/libtmux_erlang/src/tmux_window.erl#L31
- **Page:** https://libtmux.org/en/erlang/latest/reference/t-tmux_window-layout-0/

```
-type layout() ::
          even_horizontal | even_vertical |
          main_horizontal | main_vertical | tiled |
          binary().
```

A built-in arrangement, its exact binary name, or a serialized layout. Native JSON v2 requires tmux 3.8.