title: Fill color issue in TCPDF
body: <p>Im generating PDF files with TCPDF, and im setting a BG image for the page, everything works fine except fillcolor for the cell, Im writing text on to the document with WriteHTMLCell(), all attrivutes are applying for this, except fill color</p>
  
  <pre><code>$pdf-&gt;SetFillColor(240,50,20);
  </code></pre>
  
  <p>If I disable the BG image then it is working, I feel fill color is on bottom layer, any help to get the fill color visible will be helpful, thank you.</p>