Unable to use Style in xaml

[ObsidianSilence]

This is my first project using Stylet so I am probably missing something. I am opening a number of views that open other views, all of the views have a button that opens another view and a GoBack button. When I have all of the styling information in each button the project compiles and runs just fine.
When I pull the styling values out into Styles.xaml and use the Style tag


I get the following error message
"{DependencyProperty.UnsetValue}" is not a valid value for property 'Foreground'.

My question is how do i use a style sheet so I do not have to individually style a whole bunch of buttons?

[canton7]

Is this just a duplicate of #232?