title: Spartacus 3.3 - How to extend default Storefront theme (Sparta)?
body: <p>Can someone suggest me which is the best way to extend the default Spartacus Storefront theme (Sparta) by overriding only the CSS var that I need to change?</p>
  <p>I followed the guidelines at this URL: <a href="https://github.com/SAP/spartacus/blob/develop/projects/storefrontstyles/docs/flex-styling.md" rel="nofollow noreferrer">https://github.com/SAP/spartacus/blob/develop/projects/storefrontstyles/docs/flex-styling.md</a> but none of the recommended methods seem to work.</p>
  <p>Thanks in advance for your help.</p>