src/vs/workbench/contrib/markers/browser/markersView.ts/MarkersView/renderMessage
class MarkersView:	private renderMessage(): void {
		if (!this.messageBoxContainer || !this.ariaLabelElement) {
			return;
		}
		dom.clearNode(this.messageBoxContainer);
		const { total, filtered } = this.getFilterStats();

		if (filtered === 0) {
			this.messageBoxContainer.style.display = 'block';
			this.messageBoxContainer.setAttribute('tabIndex', '0');
			if (this.filters.activeFile) {
				this.renderFilterMessageForActiveFile(this.messageBoxContainer);
			} else {
				if (total > 0) {
					this.renderFilteredByFilterMessage(this.messageBoxContainer);
				} else {
					this.renderNoProblemsMessage(this.messageBoxContainer);
				}
			}
		} else {
			this.messageBoxContainer.style.display = 'none';
			if (filtered === total) {
				this.setAriaLabel(localize('No problems filtered', "Showing {0} problems", total));
			} else {
				this.setAriaLabel(localize('problems filtered', "Showing {0} of {1} problems", filtered, total));
			}
			this.messageBoxContainer.removeAttribute('tabIndex');
		}
	}