

<link rel="import" href="../polymer/polymer.html">
<link rel="import" href="color.html">

<!-- Taken from https://www.google.com/design/spec/style/color.html#color-ui-color-application -->

<custom-style>
  <style is="custom-style">
    html {
      /*
       * You can use these generic variables in your elements for easy theming.
       * For example, if all your elements use `--primary-text-color` as its main
       * color, then switching from a light to a dark theme is just a matter of
       * changi