title: Changing The MahApps Metro Theme
body: <p>I know that the MahApps metro theme comes with "themes" (colour sets), but I don't know how to change them from the default settings in my WPF application.</p>
  
  <p>I have followed the beginners tutorial at <a href="http://mahapps.com/MahApps.Metro/" rel="noreferrer">MahApps.Metro Documentation</a> (including adding the resource libraries at the top of the page), but it makes no mention about changing the theme.</p>
  
  <p>The component/Styles/Colours.xaml file has the comment "from the cosmopolitan theme pack", which may be a helpful clue to someone better versed in WPF design than me.</p>
  
  <p>I'm talking about an app-wide theme change, not an individual control.</p>