FModel/FModel/Views/AesManager.xaml

<adonisControls:AdonisWindow x:Class="FModel.Views.AesManager"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:local="clr-namespace:FModel"
         xmlns:converters="clr-namespace:FModel.Views.Resources.Converters"
         xmlns:adonisUi="clr-namespace:AdonisUI;assembly=AdonisUI"
         xmlns:adonisControls="clr-namespace:AdonisUI.Controls;assembly=AdonisUI"
         xmlns:adonisExtensions="clr-namespace:AdonisUI.Extensions;assembly=AdonisUI"
         WindowStartupLocation="CenterScreen" ResizeMode="NoResize" IconVisibility="Collapsed" SizeToContent="WidthAndHeight" Closing="OnClosing"
         MinHeight="{Binding Source={x:Static SystemParameters.MaximizedPrimaryScreenHeight}, Converter={converters:RatioConverter}, ConverterParameter='0.20'}"
         Width="{Binding Source={x:Static SystemParameters.MaximizedPrimaryScreenWidth}, Converter={converters:RatioConverter}, ConverterParameter='0.30'}">
    <adonisControls:AdonisWindow.Style>
        <Style TargetType="adonisControls:AdonisWindow" BasedOn="{StaticResource {x:Type adonisControls:AdonisWindow}}" >
            <Setter Property="Title" Value="AES Manager" />
        </Style>
    </adonisControls:AdonisWindow.Style>
    <adonisControls:AdonisWindow.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="Resources/Resources.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </adonisControls:AdonisWindow.Resources>
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>

        <StackPanel Grid.Row="0" Orientation="Vertical" Margin="10 5 10 10">
            <TextBlock Text="What to do?" HorizontalAlignment="Center" FontSize="20" FontWeight="SemiBold" />
            <TextBlock TextAlignment="Center" TextWrapping="Wrap" HorizontalAlignment="Center" MaxWidth="576"
                       Text="In order to decipher archives' information, an AES key, in most cases, is needed. Here you can set the key for your static and dynamic archives. If you don't know what key to use for your set game, simply Google it. Keys must start with &quot;0x&quot; and contains 64 more characters." />
        </StackPanel>

        <GroupBox Grid.Row="1" adonisExtensions:LayerExtension.Layer="2" Margin="10 10 10 18"
                  Padding="{adonisUi:Space 0}" Background="Transparent">
            <Grid>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition SharedSizeGroup="Name" Width="Auto" />
                    <ColumnDefinition SharedSizeGroup="Key" Width="*" />
                </Grid.ColumnDefinitions>

                <ScrollViewer MaxHeight="350"
                              adonisExtensions:ScrollViewerExtension.VerticalScrollBarExpansionMode="NeverExpand"
                              adonisExtensions:ScrollViewerExtension.VerticalScrollBarPlacement="Docked">
                    <ItemsControl Grid.IsSharedSizeScope="True" ItemsSource="{Binding AesManager.AesKeysView, UpdateSourceTrigger=PropertyChanged}">
                        <ItemsControl.ItemTemplate>
                            <DataTemplate>
                                <Grid Margin="0 2.5 0 2.5">
                                    <Grid.ColumnDefinitions>
                                        <ColumnDefinition SharedSizeGroup="Name" />
                                        <ColumnDefinition Width="10" />
                                        <ColumnDefinition SharedSizeGroup="Key" />
                                    </Grid.ColumnDefinitions>

                                    <TextBlock Grid.Column="0" VerticalAlignment="Center" HorizontalAlignment="Right"
                                               Text="{Binding Name, UpdateSourceTrigger=PropertyChanged}" />
                                    <TextBox Grid.Column="2" HorizontalContentAlignment="Left" HorizontalAlignment="Stretch"
                                             Text="{Binding Key, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" MinWidth="450" />
                                </Grid>
                            </DataTemplate>
                        </ItemsControl.ItemTemplate>
                    </ItemsControl>
                </ScrollViewer>
            </Grid>
        </GroupBox>

        <Border Grid.Row="2"
                Background="{DynamicResource {x:Static adonisUi:Brushes.Layer1BackgroundBrush}}"
                adonisExtensions:LayerExtension.IncreaseLayer="True">
            <Grid Margin="30, 12, 6, 12">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*"/>
                    <ColumnDefinition Width="Auto"/>
                    <ColumnDefinition Width="Auto"/>
                </Grid.ColumnDefinitions>

                <Button Grid.Column="1" MinWidth="78" Margin="0 0 12 0" IsDefault="True" IsCancel="False"
                        HorizontalAlignment="Right" VerticalAlignment="Bottom" Content="OK" Click="OnClick" />
                <Button Grid.Column="2" MinWidth="78" Margin="0 0 12 0" IsDefault="False"  IsCancel="False"
                        HorizontalAlignment="Right" VerticalAlignment="Bottom" Content="Refresh" Click="OnRefreshAes">
                    <Button.Style>
                        <Style TargetType="Button" BasedOn="{StaticResource {x:Type Button}}">
                            <Setter Property="Visibility" Value="Collapsed"/>
                            <Style.Triggers>
                                <DataTrigger Binding="{Binding CUE4Parse.Game}" Value="{x:Static local:FGame.FortniteGame}">
                                    <Setter Property="Visibility" Value="Visible" />
                                </DataTrigger>
                            </Style.Triggers>
                        </Style>
                    </Button.Style>
                </Button>
            </Grid>
        </Border>
    </Grid>
</adonisControls:AdonisWindow>