Current Behavior

When exiting the TUI (especially via Ctrl+C), escape sequences leak to the terminal:

^[]11;rgb:2121/2121/2121^[\^[[55;1R^[[?62;22;52c

This happens because the TUI queries terminal background color via OSC 11 to detect dark/light mode. The terminal responds with an escape sequence, but if the program exits before fully consuming the response, it appears in the terminal output.

Expected Behavior

Clean terminal state after TUI exits, with no escape sequence artifacts.

Related Issue(s)

N/A - discovered during development

Solution

Added drain_stdin() function that polls and consumes any pending terminal events before disabling raw mode. This clears any lingering OSC responses (like the background color query response) before the terminal is restored.

fn drain_stdin() {
    use std::time::Duration;
    while crossterm::event::poll(Duration::from_millis(5)).unwrap_or(false) {
        let _ = crossterm::event::read();
    }
}

The 5ms timeout is long enough to catch pending responses but short enough not to noticeably delay exit.