ZeroTierOne/windows/WinUI/MainWindow.xaml

<Window
        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:WinUI"
        mc:Ignorable="d" x:Class="WinUI.MainWindow"
        Title="ZeroTier One" Height="500" Width="700" Icon="ZeroTierIcon.ico">
	
    <Window.Resources>
        <SolidColorBrush x:Key="GreenBrush" Color="#ff91a2a3"/>

        <SolidColorBrush x:Key="SolidBorderBrush" Color="#888" />

        <SolidColorBrush x:Key="GreenDisabledBrush" Color="#FF234447" />

        <SolidColorBrush x:Key="DisabledBackgroundBrush" Color="#EEE" />

        <SolidColorBrush x:Key="DisabledBorderBrush" Color="#AAA" />

        <SolidColorBrush x:Key="DisabledForegroundBrush" Color="#888" />
        
        <Style TargetType="{x:Type DataGrid}">
            <Setter Property="Background" Value="#FFF" />
            <Setter Property="AlternationCount" Value="2" />
        </Style>

        <Style TargetType="{x:Type DataGridRow}">
            <Style.Triggers>
                <Trigger Property="ItemsControl.AlternationIndex" Value="0">
                    <Setter Property="Background" Value="#EEE"></Setter>
                </Trigger>
                <Trigger Property="ItemsControl.AlternationIndex" Value="1">
                    <Setter Property="Background" Value="#FFF"></Setter>
                </Trigger>
            </Style.Triggers>
        </Style>
        
        <Style TargetType="{x:Type TabItem}">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type TabItem}">
                        <Grid>
                            <Border 
                                Name="Border"
                                Margin="0,0,-4,0" 
                                Background="{StaticResource GreenBrush}"
                                BorderBrush="{StaticResource  SolidBorderBrush}" 
                                BorderThickness="1,1,1,1" 
                                CornerRadius="2,12,0,0" >
                                <ContentPresenter x:Name="ContentSite"
                                    VerticalAlignment="Center"
                                    HorizontalAlignment="Center"
                                    ContentSource="Header"
                                    Margin="12,2,12,2"
                                    RecognizesAccessKey="True"/>
                            </Border>
                        </Grid>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsSelected" Value="True">
                                <Setter Property="Panel.ZIndex" Value="100" />
                                <Setter TargetName="Border" Property="Background" Value="{StaticResource GreenDisabledBrush}" />
                                <Setter TargetName="Border" Property="BorderThickness" Value="1,1,1,0" />
                            </Trigger>
                            <Trigger Property="IsEnabled" Value="False">
                                <Setter TargetName="Border" Property="Background" Value="{StaticResource DisabledBackgroundBrush}" />
                                <Setter TargetName="Border" Property="BorderBrush" Value="{StaticResource DisabledBorderBrush}" />
                                <Setter Property="Foreground" Value="{StaticResource DisabledForegroundBrush}" />
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </Window.Resources>
    
    <DockPanel>
		<StatusBar DockPanel.Dock="Bottom" Height="34" Background="#FF234447" Margin="0">
			<StatusBar.ItemsPanel>
                <ItemsPanelTemplate>
                    <Grid>
                        <Grid.RowDefinitions>
                            <RowDefinition Height="*"/>
                        </Grid.RowDefinitions>
                        <Grid.ColumnDefinitions>
							<ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="Auto"/>
							<ColumnDefinition Width="Auto"/>
                        </Grid.ColumnDefinitions>
                    </Grid>
                </ItemsPanelTemplate>
            </StatusBar.ItemsPanel>
			<StatusBarItem Grid.Column="0" x:Name="networkId" Content="Network ID" Foreground="White"/>
			<StatusBarItem Grid.Column="1" x:Name="onlineStatus" Content="ONLINE" Foreground="White"/>
			<StatusBarItem Grid.Column="2" x:Name="versionString" Content="1.0.5" Foreground="White" Margin="0"/>
			<StatusBarItem Grid.Column="3" x:Name="blank" Content="" Height="43" Foreground="White" Margin="6,0,-6,-9"/>
			<StatusBarItem Grid.Column="4">
				<TextBox x:Name="joinNetworkID" Height="23" TextWrapping="Wrap" Width="120" HorizontalAlignment="Right" RenderTransformOrigin="1.168,0.478" ToolTip="Enter Network ID" PreviewTextInput="OnNetworkEntered" MaxLength="16"/>
			</StatusBarItem>
			<StatusBarItem Grid.Column="5" x:Name="statusBarButton" Foreground="White" RenderTransformOrigin="0.789,0.442">
				<Button x:Name="joinButton" Content="Join" Background="#FFFFB354" Width="77.423" Click="joinButton_Click"/>
			</StatusBarItem>
		</StatusBar>
		<TabControl>
            <TabItem x:Name="Networks" Header="Networks" Foreground="White" IsSelected="True" IsManipulationEnabled="True">
                <Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="*"/>
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="*"/>
                    </Grid.RowDefinitions>
                    <local:NetworksPage x:Name="networksPage" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Column="0" Grid.Row="0" Margin="0,0,0,0"/>
                </Grid>
            </TabItem>
            <TabItem x:Name="Peers" Header="Peers" Foreground="White">
                <Grid Background="#FFE5E5E5" HorizontalAlignment="Left" VerticalAlignment="Top">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="*"/>
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="*"/>
                    </Grid.RowDefinitions>
                    <local:PeersPage x:Name="peersPage" HorizontalAlignment="Left" VerticalAlignment="Top" Grid.Column="0" Grid.Row="0"/>
                </Grid>
            </TabItem>
		</TabControl>
	</DockPanel>
</Window>