src/vs/workbench/contrib/notebook/browser/contrib/find/findFilters.ts/NotebookFindFilters/markupPreview
class NotebookFindFilters:	set markupPreview(value: boolean) {
		if (this._markupPreview !== value) {
			this._markupPreview = value;
			this._markupInput = !value;
			this._onDidChange.fire({ markupPreview: value, markupInput: this._markupInput });
		}
	}