sourcegit/src/UI/About.xaml

<Window x:Class="SourceGit.UI.About"
        x:Name="me"
        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"
        mc:Ignorable="d"
        Height="280" Width="400"
        Title="About"
        WindowStartupLocation="CenterOwner" ResizeMode="NoResize">

    <!-- Enable WindowChrome Feature -->
    <WindowChrome.WindowChrome>
        <WindowChrome UseAeroCaptionButtons="False" CornerRadius="0" CaptionHeight="32"/>
    </WindowChrome.WindowChrome>

    <!-- Window Layout -->
    <Border Background="{StaticResource Brush.BG1}">
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="32"/>
                <RowDefinition Height="*"/>
            </Grid.RowDefinitions>

            <!-- Titlebar -->
            <Grid Grid.Row="0" Background="{StaticResource Brush.BG4}">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="Auto"/>
                    <ColumnDefinition Width="Auto"/>
                    <ColumnDefinition Width="*"/>
                    <ColumnDefinition Width="Auto"/>
                </Grid.ColumnDefinitions>

                <!-- LOGO -->
                <Path Width="20" Height="20" Margin="6,-1,2,0" Style="{StaticResource Style.Icon}" Data="{StaticResource Icon.Info}"/>

                <!-- Title -->
                <Label Grid.Column="1" Content="ABOUT" FontWeight="Light"/>

                <!-- Close Button -->
                <Button Click="Quit" Width="32" Grid.Column="3" WindowChrome.IsHitTestVisibleInChrome="True">
                    <Button.Style>
                        <Style TargetType="{x:Type Button}" BasedOn="{StaticResource Style.Button.HighlightHover}">
                            <Style.Triggers>
                                <Trigger Property="IsMouseOver" Value="True">
                                    <Setter Property="Background" Value="Red"/>
                                </Trigger>
                            </Style.Triggers>
                        </Style>
                    </Button.Style>

                    <Path Width="10" Style="{StaticResource Style.Icon}" Data="{StaticResource Icon.Close}"/>
                </Button>
            </Grid>

            <Grid Grid.Row="1">
                <Grid.RowDefinitions>
                    <RowDefinition Height="90"/>
                    <RowDefinition Height="40"/>
                    <RowDefinition Height="32"/>
                    <RowDefinition Height="24"/>
                    <RowDefinition Height="24"/>
                </Grid.RowDefinitions>

                <StackPanel Grid.Row="0" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0,6,0,0">
                    <Path Width="64" Height="64" Style="{StaticResource Style.Icon}" Data="{StaticResource Icon.Git}" Fill="#FFF05133"/>
                </StackPanel>

                <Label Grid.Row="1" Content="SourceGit - OPEN SOURCE GIT CLIENT" HorizontalContentAlignment="Center" VerticalContentAlignment="Bottom" FontSize="18" FontWeight="Bold"/>
                <Label Grid.Row="2" Content="{Binding ElementName=me, Path=Version}" HorizontalContentAlignment="Center" FontSize="11"/>

                <Label Grid.Row="3" HorizontalContentAlignment="Center" FontSize="11">
                    <Hyperlink RequestNavigate="OpenSource" NavigateUri="https://gitee.com/sourcegit/SourceGit.git">
                        <Run Text="https://gitee.com/sourcegit/SourceGit.git"/>
                    </Hyperlink>
                </Label>

                <Label Grid.Row="4" Content="Copyright © sourcegit 2020. All rights reserved." HorizontalContentAlignment="Center" FontSize="11"/>
            </Grid>
        </Grid>
    </Border>
</Window>