ZeroTierOne/windows/WinUI/NetworkListView.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.NetworkListView"
        Title="ZeroTier One" SizeToContent="Width" Height="500" Width="Auto" 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>
	    <Grid Background="LightGray" 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>
	</DockPanel>
</Window>