gistfile1.txt

mixin Centered() : FrameworkElement {
    HorizontalAlignment: Center
}
mixin Header() {
    TextBlock { FontSize: 16 }
}

TextBlock {
    @Centered()
    @Header() { "..." }
}

++++++++ VS +++++++++++++

mixin Centered() : FrameworkElement {
    HorizontalAlignment: Center
}
type Header() {
    TextBlock { FontSize: 16 }
}

TextBlock {
    #Centered()
    @Header() { "..." }
}