layout_2020::display_list::background

Function layout_layer

Source 
pub(super) fn layout_layer(
    fragment_builder: &mut BuilderForBoxFragment<'_>,
    painter: &BackgroundPainter<'_>,
    builder: &mut DisplayListBuilder<'_>,
    layer_index: usize,
    natural_sizes: NaturalSizes,
) -> Option<BackgroundLayer>