# Customizing Border of the ChromelessWindow in WPF Chromeless Window

## BorderBrush

The Borders of the resizable window can be painted by using the **ResizeBorderBrush** property.

To set the ResizeBorderBrush property, use the below code

{% tabs %}

{% highlight XAML %}

<syncfusion:ChromelessWindow x:Class="Chromelesswindow.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="ChromelessWindow" Height="350" Width="525" ResizeBorderBrush="Maroon" syncfusion:SkinStorage.VisualStyle="Metro"     
x:Name="_chromelessWindow"    xmlns:syncfusion="clr-namespace:Syncfusion.Windows.Shared;assembly=Syncfusion.Shared.WPF" >
<Grid>
</Grid>
</syncfusion:ChromelessWindow>

{% endhighlight %}

{% highlight c# %}

this.ResizeBorderBrush = new SolidColorBrush(Colors.Maroon);

{% endhighlight %}

{% highlight VB %}

Me.ResizeBorderBrush = New SolidColorBrush(Colors.Maroon)

{% endhighlight %}

{% endtabs %} 

![WPF ChromelessWindow border color customized](Customizing-Border-of-the-ChromelessWindow_images/Customizing-Border-of-the-ChromelessWindow_img1.jpeg)

## BorderThickness

To set the thickness for the Resizable border, use **ResizableBorderThickness** property of the ChromelessWindow. This property virtually sets the region for the resize pointer to appear. Hence, greater the region, easier it is to resize.

To set this property, use the following code.

{% tabs %}

{% highlight XAML %}

<syncfusion:ChromelessWindow x:Class="Chromelesswindow.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="ChromelessWindow" Height="350" Width="525" ResizeBorderThickness="8"  syncfusion:SkinStorage.VisualStyle="Metro"     
x:Name="_chromelessWindow"    xmlns:syncfusion="clr-namespace:Syncfusion.Windows.Shared;assembly=Syncfusion.Shared.WPF" >
<Grid>
</Grid>
</syncfusion:ChromelessWindow>

{% endhighlight %}

{% highlight c# %}

this.ResizeBorderThickness = new Thickness(8);

{% endhighlight %}

{% highlight VB %}

Me.ResizeBorderThickness = New Thickness(8)

{% endhighlight %}

{% endtabs %}

![WPF ChromelessWindow border thickness customized](Customizing-Border-of-the-ChromelessWindow_images/Customizing-Border-of-the-ChromelessWindow_img2.jpeg)