<Window x:Class="WpfApp1.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:WpfApp1"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="25"></RowDefinition>
            <RowDefinition Height="33*"></RowDefinition>
            <RowDefinition Height="33*"></RowDefinition>
            <RowDefinition Height="33*"></RowDefinition>
            <RowDefinition Height="50"></RowDefinition>
        </Grid.RowDefinitions>
    
    <TextBlock Grid.Row="1" FontSize="20" VerticalAlignment="Center">
        <TextBlock.Text>
            Red:
        </TextBlock.Text>
    </TextBlock>
        <Slider Grid.Row="1" Width="250" HorizontalAlignment="Center" VerticalAlignment="Center" Name="redSlider" ValueChanged="redSlider_ValueChanged" Minimum="0" Maximum="255"></Slider>
        
        
        <TextBlock Grid.Row="2" FontSize="20" VerticalAlignment="Center">
        <TextBlock.Text>
            Green:
        </TextBlock.Text>
        
        </TextBlock>
        <Slider Grid.Row="2" Width="250" HorizontalAlignment="Center" VerticalAlignment="Center" Name="greenSlider" ValueChanged="greenSlider_ValueChanged" Minimum="0" Maximum="255"></Slider>
        
        <TextBlock Grid.Row="3" FontSize="20" VerticalAlignment="Center">
        <TextBlock.Text>
            Blue:
        </TextBlock.Text>
    </TextBlock>
        <Slider Grid.Row="3" Width="250" HorizontalAlignment="Center" VerticalAlignment="Center" Name="blueSlider" ValueChanged="blueSlider_ValueChanged" Minimum="0" Maximum="255"></Slider>
        
        <Rectangle Name="myrectangle" Grid.Row="4">
            <Rectangle.Fill>
                <SolidColorBrush>
                    <SolidColorBrush.Color>
                        <Color></Color>
                    </SolidColorBrush.Color>
                </SolidColorBrush>
            </Rectangle.Fill>
        </Rectangle>
    </Grid>
</Window>
