title: How to change text color for Theme?
body: <p>This is my code, I don't understand, how to change text color for theme </p>
  
  <pre><code>void main() =&gt; runApp(new MaterialApp(
      title: 'Характеристика',
      home: new CharacteristList(),
    theme: new ThemeData(
      primaryColor: Colors.lightBlue,
      accentColor: Colors.lightBlueAccent,
    ),
  )
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/AdDMM.png" rel="noreferrer"><img src="https://i.stack.imgur.com/AdDMM.png" alt="enter image description here"></a></p>