Function pane_frame 

pub fn pane_frame(
    procs: &[ProcInfo],
    rates: &[Option<f64>],
    roots: &[usize],
    found: PaneFound,
    cpu_count: u32,
) -> PaneFrame

A pane’s frame: roots and every process under them (at most MAX_PANE_PROCS), with the host’s totals. The earliest-started root is the pane’s shell: its name comes first and its start is the pane’s.