better-genshin-impact/BetterGenshinImpact/App.xaml

<Application x:Class="BetterGenshinImpact.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:bgivc="clr-namespace:BetterGenshinImpact.View.Converters"
             xmlns:ui="http://schemas.lepo.co/wpfui/2022/xaml">
    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ui:ThemesDictionary Theme="Dark" />
                <ui:ControlsDictionary />
            </ResourceDictionary.MergedDictionaries>

            <BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" />
            <bgivc:BooleanToVisibilityRevertConverter x:Key="BooleanToVisibilityRevertConverter" />
            <bgivc:InverseBooleanConverter x:Key="InverseBooleanConverter" />
        </ResourceDictionary>
    </Application.Resources>
</Application>