src/vs/workbench/browser/parts/banner/bannerPart.ts/BannerPart/createContentArea
class BannerPart:	override createContentArea(parent: HTMLElement): HTMLElement {
		this.element = parent;
		this.element.tabIndex = 0;

		// Restore focused action if needed
		this._register(addDisposableListener(this.element, EventType.FOCUS, () => {
			if (this.focusedActionIndex !== -1) {
				this.focusActionLink();
			}
		}));

		// Track focus
		const scopedContextKeyService = this.contextKeyService.createScoped(this.element);
		CONTEXT_BANNER_FOCUSED.bindTo(scopedContextKeyService).set(true);

		return this.element;
	}