@Override
	public int getIconHeight() {
		if( height > 0 )
			return scaleSize( height );

		update();
		return scaleSize( (document != null) ? Math.round( document.size().height ) : 16 );
	}
Returns the scaled height of the icon.
flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/FlatSVGIcon.java