title: highcharts. set full height of column/bar background color
body: <p>I need to set a gradient background color to full height of column in Highcharts. Like on the image below. How can I do it? Help me, please.</p>
  
  <p><a href="https://i.stack.imgur.com/2z4XA.jpg" rel="nofollow noreferrer">here an example of what I need</a></p>