title: Update a scss variable from Angular Service
body: <p>I have a _color.scss file. I have a $primaryImageURL which stores the location of an image. Is it possible to update this variable from an Angular Service. I fetch the location details from a get call from my angular service. 
  An image gets uploaded from another service and Am trying to update the location of the primary image dynamically. </p>
  
  <pre><code>// _color.scss
  $primaryImageURL = 'src/assets/img/primaryImage.png';
  
  //Service
  someService.getPrimaryColor().subscribe(data =&gt; {
    const brandingImg = data.brandImgUrl;
    // Need to update $primaryImageURL here dynamically. 
  });
  </code></pre>
  
  <p>Thanks in Advance.</p>