src/vs/workbench/contrib/sash/browser/sash.ts/SashSettingsController/constructor
class SashSettingsController:	constructor(
		@IConfigurationService private readonly configurationService: IConfigurationService
	) {
		const onDidChangeSize = Event.filter(configurationService.onDidChangeConfiguration, e => e.affectsConfiguration('workbench.sash.size'));
		onDidChangeSize(this.onDidChangeSize, this, this.disposables);
		this.onDidChangeSize();

		const onDidChangeHoverDelay = Event.filter(configurationService.onDidChangeConfiguration, e => e.affectsConfiguration('workbench.sash.hoverDelay'));
		onDidChangeHoverDelay(this.onDidChangeHoverDelay, this, this.disposables);
		this.onDidChangeHoverDelay();
	}