LayeredPaneScope

The receiver of a LayeredPane's content, through which a child declares the depth layer it sits on.

Children are written plainly, and the depth a child declares through layer rides along on its modifier. A child declaring no depth stands on JLayeredPane.DEFAULT_LAYER, so a pane whose children share one depth is written without naming it:

LayeredPane {
    Background()
    FloatingToolbar(modifier = SwingModifier.layer(JLayeredPane.PALETTE_LAYER))
}

A layer holds as many children as the composition puts on it, so two children naming one depth both stand on the pane.

See also