App.xaml.cs

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Globalization;
using System.Linq;
using System.Net.NetworkInformation;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Markup;
using System.Windows.Threading;

namespace RemnantSaveManager
{
    /// <summary>
    /// Interaction logic for App.xaml
    /// </summary>
    public partial class App : Application
    {
        private void OnStartup(object sender, StartupEventArgs e)
        {
            var culture = CultureInfo.CurrentCulture;
            Thread.CurrentThread.CurrentCulture = culture;
            FrameworkElement.LanguageProperty.OverrideMetadata(
                typeof(FrameworkElement),
                new FrameworkPropertyMetadata(XmlLanguage.GetLanguage(culture.IetfLanguageTag)));
        }
    }
}