s="p">,</span>  <span class="c1"># colours of high and low colours</span>
                            <span class="n">offset</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="c1"># Offset for the log10 transformation</span>
                            <span class="n">text_colours</span><span class="o">=</span><span class="p">{},</span> <span class="c1"># Colourmap like the colours but for the front facing text</span>
                            <span class="n">v