="n">width</span><span class="o">=</span><span class="mi">800</span><span class="p">))</span>
  <span class="n">colorscale</span> <span class="o">=</span> <span class="p">[[</span><span class="mi">0</span><span class="p">,</span> <span class="s1">&#39;#0000FF&#39;</span><span class="p">],[</span><span class="o">.</span><span class="mi">5</span><span class="p">,</span> <span class="s1">&#39;#FFFFFF&#39;</span><span class="p">],</span> <span class="p">[</span><span class="mi">1</span><span class="p">,</span> 