enterBackground property
      
      Color?
      get
      enterBackground
      
    
    
    
Implementation
Color? get enterBackground {
  switch (inputAction) {
    case TextInputAction.done:
    case TextInputAction.go:
    case TextInputAction.search:
    case TextInputAction.send:
    case TextInputAction.join:
    case TextInputAction.route:
    case TextInputAction.emergencyCall:
      return Colors.blue;
    default:
      return null;
  }
}