In the example below, the LinearGradientBrush gives a bit of a beveled look to the border, The border is stretched across the width, but the height is similiar to a average toolbar. The textblock text in the border looks like it’s sitting on top of the bar, I’m curious if there is a way to make the text appear to be in the bar, instead of on top of the bar. Thanks for any direction.
<Border HorizontalAlignment="Stretch" VerticalAlignment="Top" BorderThickness="1" CornerRadius="0" BorderBrush="SlateGray">
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="DimGray" Offset="0" />
<GradientStop Color="Black" Offset="0.5" />
<GradientStop Color="Gray" Offset="1" />
</LinearGradientBrush>
</Border.Background>
<TextBlock Text="Check for updates" Foreground="AliceBlue" FontWeight="Bold"/>
</Border>
Not quite sure what you are looking for but two things that make it more embedded are overlaying a modified version of the background brush and using a gradient for the Text itself, but light it up as if the inside of the border is curved.