src/vs/base/browser/ui/centered/centeredViewLayout.ts/CenteredViewLayout/resizeMargins
class CenteredViewLayout:	private resizeMargins(): void {
		if (!this.splitView) {
			return;
		}
		this.splitView.resizeView(0, this.state.leftMarginRatio * this.width);
		this.splitView.resizeView(2, this.state.rightMarginRatio * this.width);
	}