dart - How to change TextFormField input text color in Flutter

Question

Doing UI for a flutter app at uni, I just want the text typed into the TextFormField to be white. It seems unnecessarily difficult. I've tried googling etc but can't see an obvious answer.

  new Theme(
    // this colors the underline
    data: theme.copyWith(
      primaryColor: Colors.white,
      hintColor: Colors.transparent,

    ),
    child: new Padding(
      padding: const EdgeInsets.fromLTRB(32.0, 40.0, 32.0, 4.0),
      child: TextFormField(

          key: Key('username'),
          keyboardType: TextInputType.text,
          controller: usernameController,
          decoration: InputDecoration(

              fillColor: Colors.black.withOpacity(0.6),
              filled: true,
              border: new OutlineInputBorder(

                borderRadius: const BorderRadius.all(

                  const Radius.circular(8.0),
                ),
                borderSide: new BorderSide(
                  color: Colors.transparent,
                  width: 1.0,
                ),
              ),
              labelText: 'Username',
              labelStyle:
                  new TextStyle(color: Colors.white, fontSize: 16.0)),
          style:
              TextStyle(fontSize: 20.0, color: textTheme.button.color),
          validator: validateUserName,
          onSaved: (val) => this.loginFields._username = val),
    ),
  ),

question from:https://stackoverflow.com/questions/52603494/how-to-change-textformfield-input-text-color-in-flutter

Answer 1

This will do:

TextFormField(
  style: TextStyle(color: Colors.white),
)