src/vs/base/browser/ui/inputbox/inputBox.ts/InputBox/showMessage
class InputBox:	public showMessage(message: IMessage, force?: boolean): void {
		this.message = message;

		this.element.classList.remove('idle');
		this.element.classList.remove('info');
		this.element.classList.remove('warning');
		this.element.classList.remove('error');
		this.element.classList.add(this.classForType(message.type));

		const styles = this.stylesForType(this.message.type);
		this.element.style.border = `1px solid ${dom.asCssValueWithDefault(styles.border, 'transparent')}`;

		if (this.message.content && (this.hasFocus() || force)) {
			this._showMessage();
		}
	}