inputBorder and fillColor are still visible

[ogeburt]

In the TextField you should add

decoration: InputDecoration(
                    filled: false,
                    border: InputBorder.none,
                    enabledBorder: InputBorder.none,
                    focusedBorder: InputBorder.none,
                    hintText: widget.decoration?.hintText,
                    counterText: "",
                    isDense: true,
                    contentPadding: EdgeInsets.symmetric(vertical: 5)),
              ),

I have a Theme that will set those parameters and give me a border an fillColor, which is not intended.
Cool Widget though.