eme`,</span>
    <span class="c1">/// depending on the macOS preference at 'System Preferences &gt; General &gt; Appearance'.</span>
    <span class="kt">ThemeManager</span><span class="o">.</span><span class="n">defaultTheme</span> <span class="o">=</span> <span class="kt">ThemeManager</span><span class="o">.</span><span class="n">lightTheme</span>

    <span class="c1">/// Define window theme policy.</span>
    <span class="kt">ThemeManager</span><span class="o">.</span><span class="n">shared</span><span 