ass="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">base</span>, <span class="tsd-kind-parameter">custom</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol"> =&gt; </span><a href="../interfaces/UIThemes.html" class="tsd-signature-type tsd-kind-interface">UIThemes</a><span class="tsd-signature-symbol">)</span></h5><ul class="tsd-parameters"><li class="tsd-parameter-signature"><ul class="tsd-signatures"><li class="tsd-signature" id="__type.create.__type-1.__type