Kepler-Release/Venus/Venus_Themes/UserControls/Turbo.xaml

<UserControl x:Class="Venus_Themes.UserControls.Turbo"
             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:Venus_Themes.UserControls"
              xmlns:converters="clr-namespace:Venus_Themes.Converters"
             mc:Ignorable="d" 
             d:DesignHeight="40" d:DesignWidth="40" x:Name="turbo" Cursor="Hand">
    <UserControl.Resources>
        <LinearGradientBrush StartPoint="0.5 0" EndPoint="0.5 1" x:Key="back">
            <GradientStop Color="Silver" Offset="0"/>
            <GradientStop Color="White" Offset="0.5"/>
            <GradientStop Color="Silver" Offset="1"/>
        </LinearGradientBrush>
        <converters:BoolToColor x:Key="BoolToColor"/>
        <converters:BoolToColor2 x:Key="BoolToColor2"/>
        <converters:BoolToColor3 x:Key="BoolToColor3"/>

    </UserControl.Resources>
    <Border  CornerRadius="20" Background="{Binding ElementName=turbo,Path=IsOpen,Converter={StaticResource BoolToColor3}}" BorderBrush="White"  BorderThickness="3">
        <Canvas>
            <Canvas Canvas.Left="-1.9" Canvas.Top="-1">
                <Border Canvas.Left="22" Background="White" Width="39" Height="6" >
                    <Border.RenderTransform>
                        <RotateTransform Angle="90"/>
                    </Border.RenderTransform>
                </Border>
                
                <Border Canvas.Top="5"  Canvas.Left="9" Background="{StaticResource back}" Width="21" Height="5"/>
                <Border Canvas.Top="13" Canvas.Left="9" Background="{StaticResource back}" Width="21" Height="5"/>
                <Border Canvas.Top="21" Canvas.Left="6"  Background="{StaticResource back}" Width="28"  Height="5"/>
                <Border Canvas.Top="29" Canvas.Left="12" Background="{StaticResource back}" Width="15" Height="5"/>
                
            </Canvas>
        </Canvas>
      
    </Border>
</UserControl>