src/vs/base/browser/ui/centered/centeredViewLayout.ts/createEmptyView
function createEmptyView(background: Color | undefined): ISplitViewView {
	const element = $('.centered-layout-margin');
	element.style.height = '100%';
	if (background) {
		element.style.backgroundColor = background.toString();
	}

	return {
		element,
		layout: () => undefined,
		minimumSize: 60,
		maximumSize: Number.POSITIVE_INFINITY,
		onDidChange: Event.None
	};
}