title: Ionic 3: Gradient background
body: <p>It is easy to change the background color of an Ionic App by setting <code>$background-color</code> in <code>variables.scss</code>, but it wont work with gradients or images. I was surprised that I could not find any official documentation on this, nor a lot of useful questions and answers.</p>
  
  <p>If you set <code>$background-color</code> to a non-color you will currently get a Sass error from one of the many Ionic components that calculate their colors based on the background color.</p>