title: Angular Material custom colors
body: <p>I would like to have access to more than 3 colors for my material theme.
  For example, I would like to add in $theme-success: mat-pallete($mat-green) to have a green success color in my Material components like <code>md-checkbox color="success"</code>.</p>
  
  <pre><code>@import '~@angular/material/theming';
  @include mat-core();
  
  $theme-primary: mat-palette($mat-blue);
  $theme-accent: mat-palette($mat-yellow, A400, A200, A600);
  $theme-warn: mat-palette($mat-red);
  $theme: mat-light-theme($theme-primary, $theme-accent, $theme-warn);
  
  .body-light {
    @include angular-material-theme($theme);
  }
  </code></pre>
  
  <p>Is this possible?</p>