title: How to Change Table Background with tableGrob in GridExtra
body: <p>I have this Gridmesh in the Background of my plottet table. How do i Change the Background other then with theme</p>
  
  <p><a href="https://imgur.com/a/6s5tM0j" rel="nofollow noreferrer">https://imgur.com/a/6s5tM0j</a></p>
  
  <pre><code>cor.t=mydata
  
  tt3 &lt;- ttheme_minimal(
  base_size = 8,
  core=list(bg_params = list(fill = paste(substr(HeaderFarbe[n+1],
  start = 1, stop = 7),"4D",sep=""),
  col=HeaderFarbe[n+1]),
  fg_params=list(fontface=3)),
  colhead=list(fg_params=list(col=HeaderFarbe[n+1], fontface=4L)),
  rowhead=list(fg_params=list(col="red", fontface=3L)))
  
  plot(tableGrob(cor.t ,theme=tt3))
  </code></pre>