Struct HeaderlineRow 

pub struct HeaderlineRow {
    pub cells: Arc<[Cell]>,
    pub bg: Option<u32>,
}

The row produced by a Headerline impl when it wants to be visible.

Fields

cells: Arc<[Cell]>

Cells to paint. Non-empty (callers return None when the row should be hidden instead of returning an empty cell slice).

bg: Option<u32>

Override the renderer’s sticky-row background. None → renderer uses the theme-defined header background. Some(0xRRGGBB) → hard-coded colour (e.g. tutor’s retro palette).