border method
Implementation
TextField border({Color color = const Color(0xff95d9f1), double width = 1, double radius = 0}) {
var newDecoration = InputDecoration(
border: OutlineInputBorder(
borderSide: BorderSide(color: color, width: width),
borderRadius: BorderRadius.all(Radius.circular(radius)),
),
);
var merge = decoration?.copyWith(
border: OutlineInputBorder(
borderSide: BorderSide(color: color, width: width),
borderRadius: BorderRadius.all(Radius.circular(radius)),
)) ??
newDecoration;
return copyWith(decoration: merge);
}