appcui 0.5.1

A feature-rich and cross-platform TUI/CUI framework for Rust, enabling modern terminal-based applications on Windows, Linux, and macOS. Includes built-in UI components like buttons, menus, list views, tree views, checkboxes, and more. Perfect for building fast and interactive CLI tools and text-based interfaces.
Documentation 
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/// Which edge of the app bar an item is laid out from.
///
/// Combined with the item's `order` (lower first). Left items grow rightward;
/// right items grow leftward.
#[derive(Copy, Clone, Eq, PartialEq, Debug)]
pub enum Side {
    /// Pack from the left edge of the app bar (menus, File/Edit, and similar).
    Left,
    /// Pack from the right edge of the app bar (Help, status, and similar).
    Right,
}