clicker/Clicker/MainWindow.xaml

<Window x:Class="Clicker.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:Clicker"
        mc:Ignorable="d"
        Title="Clicker" Height="391" Width="700" WindowStyle="None" ResizeMode="NoResize">
    <Grid>
        <TabControl HorizontalAlignment="Left" Height="419" VerticalAlignment="Top" Width="698">
            <TabItem Header="Clicker">
                <Grid Background="#FFE5E5E5">
                    <Image Height="391" VerticalAlignment="Top" Source="Image/background.jpg" Margin="0,0,-93,0" HorizontalAlignment="Left" Width="693"/>
                    <Label x:Name="poi" Content="Points:" HorizontalAlignment="Left" Margin="10,66,0,0" VerticalAlignment="Top" Height="36" Width="238" Foreground="White" FontFamily="/Clicker;component/Fonts/#Montserrat Medium" FontSize="20"/>
                    <Label x:Name="cli" Content="Points per click:" HorizontalAlignment="Left" Margin="10,102,0,0" VerticalAlignment="Top" FontSize="20" FontFamily="/Clicker;component/Fonts/#Montserrat Medium" Foreground="White" Width="238" Height="38"/>
                    <Image Source="Image/cookie.png" Margin="222,48,222,171" MouseDown="Image_MouseDown"/>
                    <Button x:Name="b1" Click="b1_Click" HorizontalAlignment="Left" Margin="158,267,0,0" Width="90" Height="90" VerticalAlignment="Top">
                        <Image Source="Image/button.jpg"/>
                    </Button>
                    <Button x:Name="b2" Click="b2_Click" HorizontalAlignment="Left" Margin="254,267,0,0" VerticalAlignment="Top" Width="90" Height="90">
                        <Image Source="Image/button.jpg"/>
                    </Button>
                    <Button x:Name="b3" Click="b3_Click" Margin="349,267,253,0" VerticalAlignment="Top"  Width="90" Height="90">
                        <Image Source="Image/button.jpg"/>
                    </Button>
                    <Button x:Name="b4" Click="b4_Click" Margin="444,267,158,0" VerticalAlignment="Top" Width="90" Height="90">
                        <Image Source="Image/button.jpg"/>
                    </Button>
                    <Button HorizontalAlignment="Left" Margin="595,0,0,0" VerticalAlignment="Top" Width="97" Height="36" Click="Button_Click">
                        <Image Source="Image/exit.jpg"/>
                    </Button>
                </Grid>
            </TabItem>
            <TabItem Header="Shop">
                <Grid Background="#FFE5E5E5"/>
            </TabItem>
        </TabControl>

    </Grid>
</Window>