span> <span class="nam">WALL_RGB</span><span class="op">:</span>&nbsp;</span><span class="r"></span></p>
    <p class="pln"><span class="n"><a id="t166" href="#t166">166</a></span><span class="t">                                <span class="com"># It's a wall => skip (already covered by background)</span>&nbsp;</span><span class="r"></span></p>
    <p class="mis show_mis"><span class="n"><a id="t167" href="#t167">167</a></span><span class="t">                                <span class="key">continue</span>