src/vs/platform/log/common/log.ts/ConsoleMainLogger/critical
class ConsoleMainLogger:	critical(message: string, ...args: any[]): void {
		if (this.getLevel() <= LogLevel.Critical) {
			if (this.useColors) {
				console.error(`\x1b[90m[main ${now()}]\x1b[0m`, message, ...args);
			} else {
				console.error(`[main ${now()}]`, message, ...args);
			}
		}
	}