Add view model and assets for "Hyperion" mockup bootstrapper

Bloxstrap/Dialogs/HyperionDialog.xaml

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+<Window x:Class="Bloxstrap.Dialogs.HyperionDialog"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Bloxstrap.Dialogs"
+        mc:Ignorable="d"
+        Width="600" 
+        Height="400"
+        ResizeMode="NoResize"
+        WindowStyle="None"
+        WindowStartupLocation="CenterScreen"
+        AllowsTransparency="True"
+        Background="Transparent">
+    <Border 
+        CornerRadius="10"
+        Background="Black">
+        <Grid>
+            <Button Margin="12,12,12,12" VerticalAlignment="Top" HorizontalAlignment="Right" Width="20" Height="20" BorderThickness="0" Padding="0" Background="Transparent" BorderBrush="Transparent" Visibility="{Binding CancelButtonVisibility, Mode=OneWay}" Command="{Binding CancelInstallCommand}">
+                <Image Source="/Resources/CancelButtonSmall.png"/>
+            </Button>
+            <Border Margin="12,12,36,12" VerticalAlignment="Top" Height="20">
+                <TextBlock VerticalAlignment="Center" TextAlignment="Left" Foreground="#FFECECEC" FontSize="12" FontWeight="Bold" Text="{Binding Version}" />
+            </Border>
+            <Image Width="300" Height="60" Source="/Resources/WordmarkRoblox.png"/>
+            <Grid Margin="0,0,0,30" VerticalAlignment="Bottom">
+                <Grid.RowDefinitions>
+                    <RowDefinition/>
+                    <RowDefinition/>
+                </Grid.RowDefinitions>
+                <TextBlock TextAlignment="Center" Grid.Row="0" FontSize="16" Text="{Binding Message}" Foreground="#FFECECEC" FontFamily="Source Sans Pro" Margin="0,0,0,28" />
+                <ProgressBar Grid.Row="1" Width="480" Height="10" Foreground="#FFECECEC" Background="#FF565656" IsIndeterminate="{Binding ProgressIndeterminate}" Value="{Binding ProgressValue}"></ProgressBar>
+            </Grid>
+        </Grid>
+    </Border>
+</Window>

Bloxstrap/Dialogs/HyperionDialog.xaml.cs

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+using System;
+using System.Windows;
+using System.Windows.Forms;
+
+using Bloxstrap.Enums;
+using Bloxstrap.Extensions;
+using Bloxstrap.ViewModels;
+
+namespace Bloxstrap.Dialogs
+{
+    /// <summary>
+    /// Interaction logic for HyperionDialog.xaml
+    /// </summary>
+    public partial class HyperionDialog : IBootstrapperDialog
+    {
+        private readonly HyperionDialogViewModel _viewModel;
+
+        public Bootstrapper? Bootstrapper { get; set; }
+
+        #region UI Elements
+        public string Message
+        {
+            get => _viewModel.Message;
+            set
+            {
+                _viewModel.Message = value;
+                _viewModel.OnPropertyChanged(nameof(_viewModel.Message));
+            }
+        }
+
+        public ProgressBarStyle ProgressStyle
+        {
+            get => _viewModel.ProgressIndeterminate ? ProgressBarStyle.Marquee : ProgressBarStyle.Continuous;
+            set
+            {
+                _viewModel.ProgressIndeterminate = (value == ProgressBarStyle.Marquee);
+                _viewModel.OnPropertyChanged(nameof(_viewModel.ProgressIndeterminate));
+            }
+        }
+
+        public int ProgressValue
+        {
+            get => _viewModel.ProgressValue;
+            set
+            {
+                _viewModel.ProgressValue = value;
+                _viewModel.OnPropertyChanged(nameof(_viewModel.ProgressValue));
+            }
+        }
+
+        public bool CancelEnabled
+        {
+            get => _viewModel.CancelButtonVisibility == Visibility.Visible;
+            set
+            {
+                _viewModel.CancelButtonVisibility = (value ? Visibility.Visible : Visibility.Collapsed);
+                _viewModel.OnPropertyChanged(nameof(_viewModel.CancelButtonVisibility));
+            }
+        }
+        #endregion
+
+        public HyperionDialog()
+        {
+            _viewModel = new HyperionDialogViewModel(this);
+            DataContext = _viewModel;
+            InitializeComponent();
+        }
+
+        #region IBootstrapperDialog Methods
+        // Referencing FluentDialog
+        public void ShowBootstrapper() => this.ShowDialog();
+
+        public void CloseBootstrapper() => Dispatcher.BeginInvoke(this.Close);
+
+        public void ShowSuccess(string message)
+        {
+            App.ShowMessageBox(message, MessageBoxImage.Information);
+            App.Terminate();
+        }
+
+        public void ShowError(string message)
+        {
+            App.ShowMessageBox($"An error occurred while starting Roblox\n\nDetails: {message}", MessageBoxImage.Error);
+            App.Terminate(Bootstrapper.ERROR_INSTALL_FAILURE);
+        }
+
+        public void PromptShutdown()
+        {
+            MessageBoxResult result = App.ShowMessageBox(
+                "Roblox is currently running, but needs to close. Would you like close Roblox now?",
+                MessageBoxImage.Information,
+                MessageBoxButton.OKCancel
+            );
+
+            if (result != MessageBoxResult.OK)
+                Environment.Exit(Bootstrapper.ERROR_INSTALL_USEREXIT);
+        }
+        #endregion
+    }
+}

Bloxstrap/ViewModels/HyperionDialogViewModel.cs

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+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Input;
+using System.Windows.Media;
+using CommunityToolkit.Mvvm.Input;
+using Bloxstrap.Dialogs;
+using Bloxstrap.Enums;
+using Bloxstrap.Extensions;
+
+namespace Bloxstrap.ViewModels
+{
+    public class HyperionDialogViewModel : INotifyPropertyChanged
+    {
+        public event PropertyChangedEventHandler? PropertyChanged;
+        public void OnPropertyChanged(string propertyName) => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        private readonly IBootstrapperDialog _dialog;
+
+        public ICommand CancelInstallCommand => new RelayCommand(CancelInstall);
+
+        public string Title => App.Settings.Prop.BootstrapperTitle;
+        public string Message { get; set; } = "Please wait...";
+        public bool ProgressIndeterminate { get; set; } = true;
+        public int ProgressValue { get; set; } = 0;
+
+        public Visibility CancelButtonVisibility { get; set; } = Visibility.Collapsed;
+
+        public string Version => $"Bloxstrap v{App.Version}";
+
+        public HyperionDialogViewModel(IBootstrapperDialog dialog)
+        {
+            _dialog = dialog;
+        }
+
+        private void CancelInstall()
+        {
+            _dialog.Bootstrapper?.CancelInstall();
+            _dialog.CloseBootstrapper();
+        }
+    }
+}