src/vs/editor/contrib/unicodeHighlighter/browser/bannerController.ts/Banner/constructor
class Banner:	constructor(
		@IInstantiationService private readonly instantiationService: IInstantiationService,
	) {
		super();

		this.markdownRenderer = this.instantiationService.createInstance(MarkdownRenderer, {});

		this.element = $('div.editor-banner');
		this.element.tabIndex = 0;
	}