Function indeterminate_linear_progress_with_playback 

pub fn indeterminate_linear_progress_with_playback(
    id: impl Into<ElementId>,
    label: impl Into<SharedString>,
    thickness: Pixels,
    muted: bool,
    playback: RepeatAnimationPlayback,
    _cx: &App,
) -> AnyElement

Indeterminate progress with custom thickness/color and a persistent clock. The caller-supplied label names the indicator for assistive technology.