ss='op'>(</span><span class='va'>data</span>, colour <span class='op'>=</span> <span class='st'>"black"</span>, <span class='va'>...</span><span class='op'>)</span>

<span class='fu'>color_neg_nodes</span><span class='op'>(</span><span class='va'>data</span>, color <span class='op'>=</span> <span class='st'>"black"</span>, <span class='va'>...</span><span class='op'>)</span>

<span class='fu'>linetype_neg_nodes</span><span class='op'>(</span><span class='va'>data</span>, linetype <span class='op'>=</span> <