<span class="r-wrn co"><span class="r-pr">#&gt;</span> <span class="warning">Warning: </span>convex combination of colors in polar coordinates (polarLUV) may not be appropriate</span>
<span class="r-wrn co"><span class="r-pr">#&gt;</span> <span class="warning">Warning: </span>convex combination of colors in polar coordinates (polarLUV) may not be appropriate</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>         1         2         3         4         5         6         7         8 </span>
<