MainWindow.xaml

<Window x:Class="DualSenseBatteryMonitor.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:DualSenseBatteryMonitor"
        mc:Ignorable="d"
        Title="DualSense Battery Monitor" Height="400" Width="200" WindowStartupLocation="Manual" Loaded="Window_Loaded"
        Left="0" Top="0" Foreground="White" Background="Transparent" WindowStyle="None" SnapsToDevicePixels="True" Topmost="True" Focusable="False" IsHitTestVisible="False" IsTabStop="False" ResizeMode="NoResize" ShowInTaskbar="False" Icon="/icons/window/BatteryMonitor.ico" ShowActivated="False" AllowsTransparency="True">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="11*"/>
            <RowDefinition Height="89*"/>
        </Grid.RowDefinitions>
        <Border BorderThickness="1,1,0,1" CornerRadius="20,0,0,20" SnapsToDevicePixels="True" ClipToBounds="True" ScrollViewer.VerticalScrollBarVisibility="Disabled" Grid.RowSpan="2">
            <Border.Background>
                <LinearGradientBrush x:Name="gradient_background" EndPoint="0,0" StartPoint="1,1" SpreadMethod="Pad">
                    <GradientStop Color="#FF00439C" Offset="0"/>
                    <GradientStop Color="#FF1F1F1F" Offset="1"/>
                </LinearGradientBrush>
            </Border.Background>
            <ListBox x:Name="flowLayout_controller" Grid.Row="1" Grid.Column="4" Foreground="White" Focusable="False" IsTextSearchEnabled="False" ClipToBounds="True" ScrollViewer.HorizontalScrollBarVisibility="Disabled" ScrollViewer.VerticalScrollBarVisibility="Disabled" BorderBrush="{x:Null}" Background="{x:Null}" Margin="15,0,0,0"></ListBox>
        </Border>
    </Grid>
</Window>