title: Example for ShadowOptionsObject
body: <p>I enabled shadow: true <br>
  Now, I want to customize the shadow by adding custom values for color, offsetX, offsetY, opacity, width <br>
  is there an example somewhere? I am a bit lost, THX! </p>
  
  <p><a href="https://api.highcharts.com/class-reference/Highcharts.ShadowOptionsObject#toc0" rel="nofollow noreferrer">https://api.highcharts.com/class-reference/Highcharts.ShadowOptionsObject#toc0</a></p>