Module leader 

Vim-style leader key bar — generic, reusable across apps.

Usage

1. Define your menu tree as a &'static [LeaderNode].
2. Create LeaderState::new(root).
3. Call arm() when the leader key is pressed.
4. On each key: call push(c) → LeaderResult.
5. Call tick() each event-loop iteration (handles timeout).
6. Call render_leader_bar(f, &state, screen_area, &theme) in your draw fn.

Label rendering

Each LeaderNode takes a full label string (e.g. "navigate", "find"). The key character is highlighted inline with [k] brackets if it appears in the label, otherwise it is displayed as a prefix:

[f]ind         ← 'f' found at position 0
e[x]ecute      ← 'x' found at position 1
[g] navigate   ← 'g' not in "navigate"

Structs

LeaderNode

One entry in a leader menu level.

LeaderState

Enums

LeaderResult

Outcome of pressing a key while the leader is active.

Functions

render_leader_bar