PixiEditor/PixiEditorDotNetCore3/Views/MenuButton.xaml

<UserControl x:Class="PixiEditor.Views.MenuButton"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:PixiEditor.Views"
             xmlns:vm="clr-namespace:PixiEditor.ViewModels"
             xmlns:helpers="clr-namespace:PixiEditor.Helpers"
             xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
             mc:Ignorable="d" 
             d:DesignHeight="330" d:DesignWidth="200" x:Name="menuButton" DataContext="{DynamicResource MenuButtonViewModel}">
    <UserControl.Resources>
        <vm:MenuButtonViewModel x:Key="MenuButtonViewModel"/>
        <Style TargetType="ListViewItem">
            <Style.Resources>
                <SolidColorBrush x:Key="{x:Static SystemColors.HighlightTextBrushKey}" Color="Transparent"/>
                <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="Transparent"/>

            </Style.Resources>
        </Style>
    </UserControl.Resources>

    <StackPanel Name="MainStackPanel">
        <Button Content="{Binding ElementName=menuButton,Path=Text}" Style="{StaticResource MenuButton}" HorizontalAlignment="Left" Command="{Binding OpenListViewCommand}"/>
        <ListView Visibility="{Binding ListViewVisibility}" Style="{StaticResource MenuListViewStyle}">
            <ListView.ItemContainerStyle>
                <Style TargetType="{x:Type ListViewItem}">
                    <Setter Property="Background" Value="Transparent"/>
                    <Setter Property="VerticalContentAlignment" Value="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="{x:Type ListViewItem}">
                                <Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="Transparent"  Padding="{TemplateBinding Padding}" SnapsToDevicePixels="true">
                                    <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                                </Border>
                                <ControlTemplate.Triggers>
                                    <Trigger Property="IsMouseOver" Value="True">
                                        <Setter Property="BorderThickness" Value="1" />
                                        <Setter Property="BorderBrush" Value="Transparent" />
                                    </Trigger>
                                </ControlTemplate.Triggers>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                </Style>
            </ListView.ItemContainerStyle>
            <ContentPresenter Content="{Binding Item, ElementName=menuButton}"/>
        </ListView>
    </StackPanel>
</UserControl>