src/vs/workbench/browser/parts/notifications/notificationsViewer.ts/NotificationTemplateRenderer/toSeverityIcon
class NotificationTemplateRenderer:	private toSeverityIcon(severity: Severity): Codicon {
		switch (severity) {
			case Severity.Warning:
				return Codicon.warning;
			case Severity.Error:
				return Codicon.error;
		}
		return Codicon.info;
	}