zontal line.</dd>
            <dt>
              <span class="m-doc-wrap-bumper">static auto <a href="#a4fd6c57cf531d44260f5b7d2ca72f1f7" class="m-doc">create_optional</a>(</span><span class="m-doc-wrap"><a href="classbn_1_1sprite__palette__ptr.html" class="m-doc">sprite_<wbr />palette_<wbr />ptr</a> palette,
              int color_index,
              const <a href="classbn_1_1span.html" class="m-doc">span</a>&lt;const <a href="classbn_1_1color.html" class="m-doc">color</a>&gt;&amp; colors_ref) -&gt; <a h