title: Import path using variable SASS
body: <p>I'd like to import a file using variables.</p>
  
  <p>My code (that doesn't work) :</p>
  
  <pre><code>$input-field-theme: default;
  @import '#{$input-field-theme}';
  </code></pre>
  
  <p>Error message : <code>Error: File to import not found or unreadable: #{$input-field-theme}</code></p>
  
  <p>And this works : <code>@import 'default';</code></p>