Apply inputValidation.errorForeground (fixes #99573)

src/vs/base/parts/quickinput/browser/quickInput.ts

@@ -353,10 +353,12 @@ class QuickInput extends Disposable implements IQuickInput {
 		this.ui.inputBox.showDecoration(severity);
 		if (severity === Severity.Error) {
 			const styles = this.ui.inputBox.stylesForType(severity);
+			this.ui.message.style.color = styles.foreground ? `${styles.foreground}` : '';
 			this.ui.message.style.backgroundColor = styles.background ? `${styles.background}` : '';
 			this.ui.message.style.border = styles.border ? `1px solid ${styles.border}` : '';
 			this.ui.message.style.paddingBottom = '4px';
 		} else {
+			this.ui.message.style.color = '';
 			this.ui.message.style.backgroundColor = '';
 			this.ui.message.style.border = '';
 			this.ui.message.style.paddingBottom = '';