# dotty > A customizable interactive graph editor for the X Window System. > Note: This tool has been deprecated, but this entry is retained to aid anyone still using it. > More information: . - Open a graph file (`.gv` or `.dot`) in the Dotty editor: `dotty {{path/to/graph.gv}}` - Start Dotty with the [V]ersion information displayed: `dotty -V` - Set the [l]ayout [m]ode to synchronous or asynchronous: `dotty -lm {{sync|async}} {{path/to/graph.gv}}` - Set the m[e]ssage verbosity [l]evel (`0` for minimal, `1` for detailed): `dotty -el {{0|1}} {{path/to/graph.gv}}`