src/vs/workbench/browser/parts/views/viewPaneContainer.ts/ViewPaneContainer/orientation
class ViewPaneContainer:	private get orientation(): Orientation {
		if (this.viewDescriptorService.getViewContainerLocation(this.viewContainer) === ViewContainerLocation.Sidebar) {
			return Orientation.VERTICAL;
		} else {
			return this.layoutService.getPanelPosition() === Position.BOTTOM ? Orientation.HORIZONTAL : Orientation.VERTICAL;
		}
	}