Wrong colors

gistfile1.txt

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    // Color for App bar BG, Card BG, RaisedButton BG, FloatingButton BG
    Color primary = Colors.red;

    // Color for text where the primary color is the background
    Color accent = Colors.yellowAccent;

    // Any other text color
    Color black = Colors.black;

    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.redAccent[800],
        primaryColor: primary,
        accentColor: accent,
        brightness: Brightness.light,
        primaryIconTheme: IconThemeData(color: accent),
        accentIconTheme: IconThemeData(color: accent),
        iconTheme: IconThemeData(color: accent),
        cardColor: primary,
        buttonColor: primary,
        buttonTheme: ButtonThemeData(
          textTheme: ButtonTextTheme.accent,
          buttonColor: primary,
        ),
        primaryTextTheme: TextTheme(
          title: TextStyle(color: accent),
          button: TextStyle(color: black),
        ),
        accentTextTheme: TextTheme(
          title: TextStyle(color: black),
          button: TextStyle(color: black),
        ),
        textTheme: TextTheme(
          title: TextStyle(color: black),
          button: TextStyle(color: black),
        ),
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  void _incrementCounter() {
    showDialog(
      context: context,
      builder: (BuildContext context) {
        return AlertDialog(
          title: new Text("Foo bar"),
          content: new Text(
              "The delete button is set manually to ButtonTextTheme.primary to be red, it´s fine. But the keep button defaults to the ThemeData.accentColor"),
          actions: <Widget>[
            new FlatButton(
              textTheme: ButtonTextTheme.primary,
              child: new Text(
                "Delete",
                style: TextStyle(color: Theme.of(context).primaryColor),
              ),
              onPressed: () {
                Navigator.of(context).pop();
              },
            ),
            new FlatButton(
              child: new Text("Keep"),
              onPressed: () {
                Navigator.of(context).pop();
              },
            ),
          ],
        );
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      drawer: Drawer(),
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              'Floating action button background color should be the primary red, not the yellow accent color. Like the AppBar+DrawerIcon',
            )
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}