Vehicle/WPF01/MainWindow.xaml

<Window x:Class="WPF01.MainWindow"
        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:WPF01"
        mc:Ignorable="d"
        Title="Вход в систему" Height="400" Width="600" Visibility="Visible" MinWidth="290" MinHeight="350">

    <Grid>
        <Grid.Background>
            <LinearGradientBrush EndPoint="0.5,1" MappingMode="RelativeToBoundingBox" StartPoint="0.5,0" Opacity="0.2">
                <LinearGradientBrush.RelativeTransform>
                    <TransformGroup>
                        <ScaleTransform CenterY="0.5" CenterX="0.5"/>
                        <SkewTransform CenterY="0.5" CenterX="0.5"/>
                        <RotateTransform Angle="135" CenterY="0.5" CenterX="0.5"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </LinearGradientBrush.RelativeTransform>
                <GradientStop Color="#FF0583DA" Offset="0"/>
                <GradientStop Color="#FF02C1B0" Offset="0.995"/>
            </LinearGradientBrush>
        </Grid.Background>
        
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="1*"/>
            <ColumnDefinition Width="120"/>
        </Grid.ColumnDefinitions>

        <Grid.RowDefinitions>
            <RowDefinition Height="24"/>
            <RowDefinition Height="1*"/>
        </Grid.RowDefinitions>

        <Frame x:Name="MainFrame" Margin="0" Loaded="Frame_Loaded" Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" NavigationUIVisibility="Hidden" ></Frame>
    </Grid>

</Window>