gg/UI/Views/MainWnd.xaml

<Window x:Class="RR2.UI.Views.MainWnd"
        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:RR2"
        mc:Ignorable="d" Name ="home"
        Title="MainWnd"
        Height="600" Width="900"
        WindowStartupLocation="CenterScreen" WindowStyle="None"
        Background="Transparent" AllowsTransparency="True"
        ResizeMode="NoResize" FontFamily="Poppins">
    <Border Background="{DynamicResource PrimaryBackgroundColor}" CornerRadius="8" MouseLeftButtonDown="Border_MouseLeftButtonDown">
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="60"/>
                <RowDefinition Height="*"/>
            </Grid.RowDefinitions>

            <!-- Кнопки скрытия,свертывания и закрытия -->
            <Grid Grid.Row="0">
                <Border Margin="14 0 0 0" Width="50" Height="40" HorizontalAlignment="Left">
                    <Border.Background>
                        <ImageBrush ImageSource="/RR2;component/Resources/Logo.png" Stretch="Uniform"/>
                    </Border.Background>
                </Border>

                <TextBlock Margin="70 0 0 0" VerticalAlignment="Center">Дороги России</TextBlock>
                <TextBlock Margin="200 0 0 0" VerticalAlignment="Center">Организационная структура</TextBlock>
                <StackPanel HorizontalAlignment="Right" VerticalAlignment="Top" Margin="0,5,10,0" Height="30" Orientation="Horizontal" FlowDirection="RightToLeft" Grid.RowSpan="2">
                    <Button x:Name="CloseBtn" Style="{DynamicResource NavViewButtonsStyle}" Content="x" Click="CloseBtn_Click" Tag="IsCloseButton"/>
                    <Button x:Name="RestoreBtn" Style="{DynamicResource NavViewButtonsStyle}" Content="o" Click="RestoreBtn_Click" Margin="5,0" />
                    <Button x:Name="MinimizeBtn" Style="{DynamicResource NavViewButtonsStyle}" Content="-" Click="MinimizeBtn_Click"/>
                </StackPanel>
            </Grid>

            <!-- Панель контента -->
            <Frame Grid.Row="1" x:Name="MainFr" Margin="20" NavigationUIVisibility="Hidden"/>
        </Grid>
    </Border>
</Window>