TeamAAS-2.5/Tools/LocalizationTool/App.xaml

<Application x:Class="LocalizationTool.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:conv="clr-namespace:LocalizationTool.Converters"
             StartupUri="MainWindow.xaml">
    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="pack://application:,,,/HandyControl;component/Themes/SkinDefault.xaml"/>
                <ResourceDictionary Source="pack://application:,,,/HandyControl;component/Themes/Theme.xaml"/>
            </ResourceDictionary.MergedDictionaries>

            <BooleanToVisibilityConverter x:Key="BoolToVis"/>
            <conv:InverseBoolConverter x:Key="InverseBool"/>
        </ResourceDictionary>
    </Application.Resources>
</Application>