Separator

A second approach to grouping widgets in one display is to place a thin horizontal or vertical rule between groups of widgets; often, this can be more space-efficient than using white space, which may be relevant for a tight display. Tk provides a simple separator widget for this purpose.

Separator widgets

Separators are created using the add_ttk_separator method:

#![allow(unused)]
fn main() {
parent.add_ttk_separator( "s" -orient("horizontal") )?;
}

The orient option may be specified as either horizontal or vertical.