title: how can I add a background color to a header column label
body: <p>I need to add a background color that should be like this <a href="https://i.stack.imgur.com/FHgoU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/FHgoU.png" alt="enter image description here"></a></p>
  
  <p>I think that the only solution would be to add a span inside the th container like this:</p>
  
  <pre><code>&lt;th class="sorting_asc" tabindex="0" aria-controls="DataTables_Table_0" rowspan="1" colspan="1" aria-label="Companies: activate to sort column descending" aria-sort="ascending"&gt;
  &lt;span&gt;Companies&lt;/span&gt;
  &lt;/th&gt;
  </code></pre>
  
  <p>Unfortunatly I have no idea of how to add the spans</p>