A;c=<span style="color:#036;font-weight:bold">Rubyvis</span>::<span style="color:#036;font-weight:bold">Colors</span>.category19()&#x000A;&#x000A;vis = <span style="color:#036;font-weight:bold">Rubyvis</span>::<span style="color:#036;font-weight:bold">Panel</span>.new() <span style="color:#080;font-weight:bold">do</span> &#x000A;  width <span style="color:#00D">880</span>&#x000A;  height <span style="color:#00D">310</span>&#x000A;  bottom <span style="color:#00D">90</span>&#x000A;  layout_arc <span style="c