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InputDecoration labelText doesn't turn red when TextFormField validation fails · Issue #41382 · flutter/flutter · GitHub
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usability - What color for error messages for a form with a red background? - User Experience Stack Exchange
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usability - What color for error messages for a form with a red background? - User Experience Stack Exchange
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usability - What color for error messages for a form with a red background? - User Experience Stack Exchange
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