title: Slickgrid add colour to a cell/ column or row
body: <p>I have a slickgrid which works fantastic,  it has calculations/ subtotals / expenses etc, 
  The subtotals are not fixed a one row they move down as Items are selected above.</p>
  
  <p>However I am stuck at change the colour of the text in this one cell to red? is it possible? maybe by injecting HTML code in ?
  and is there a way to colour a whole column background.. say green? or a row to gray?</p>