Separate color class

Try to have all the colors in a single class for your application. Use a color class to set colors in flutter app. It will be easy to change the color everywhere at once.

Don't

style: Textstyle(color: Colors.white, fontsize: 14),

Do

class AppColors{
  static const Color red = Color(0xXFFFFO000);
  static const Color green = Color(oxFF4CAF50);
  static const Color errorRed Color(OxFFFF6E6E);
}
  
style: Textstyle(color: errorRed, fontsize: 14),