Let's add the ability to highlight our drawing. We'll need to add a few interface elements to switch back and forth between highlighter mode and regular pen mode. We will do this now as follows:
SilverInksolution just created in Launch Visual Studio.
LayoutRootinto two rows. In
MainPage.xaml, add the following XAML code belongs right below the line of code
<Grid x:Name="LayoutRoot" Background="White">:
<Grid.RowDefinitions> <RowDefinition Height="40" /> <RowDefinition Height="*" /> </Grid.RowDefinitions>