">.</span><span class="nf">addObserver</span><span class="p">(</span><span class="nv">forName</span><span class="p">:</span> <span class="o">.</span><span class="n">didChangeTheme</span><span class="p">,</span> <span class="nv">object</span><span class="p">:</span> <span class="kc">nil</span><span class="p">,</span> <span class="nv">queue</span><span class="p">:</span> <span class="kc">nil</span><span class="p">)</span> <span class="p">{</span> <span class="p">(</span><span class="n">note</span><span class=