title: highcharts heatmap : arbitrarily set cell colors
body: <p>I have tested the HighCharts heatmap (heatmap.js) charts. They work fine for me, but there is one situation where I would like to set the cell colors myself, individually - i.e. NOT using the colorAxis settings.</p>
  
  <p>Is there an easy way to do that without messing with the colorAxis stops  ? E.G. by setting the color directly in the data series ?</p>
  
  <p>Arguably this defeats the idea of a real "heatmap" but would be the shortest route for me to address a specific requirement (instead of building a HTML table with colored cells).
  "
  Note finally this is not the same question as "how do you change the color of cells in highcharts heatmap?"</p>