pan class="p">,</span> <span class="n">ax</span> <span class="o">=</span> <span
            class="n">plt</span><span class="o">.</span><span class="n">subplots</span><span class="p">()</span>

    <span class="k">if</span> <span class="n">color</span> <span class="ow">is</span> <span class="kc">None</span><span
            class="p">:</span>
        <span class="n">color</span> <span class="o">=</span> <span class="p">(</span><span class="mf">0.0</span><span
            class="p">,</span> <span class="mf">