wpf - Foreground Color of Custom Button (ControlPresenter) -

I am trying to define a global button style in App.xaml, and it mostly works as expected Has been doing. However, I can not understand how the foreground should be done in the right way. No matter what I have to do, I'm getting the default TextBlock style (which sets the color to white)

   & Lt; Setter Property = "Override Default Style" value = "true" /> & Lt; Setter property = "focus visual style" value = "{static processing button focus visual}" /> & Lt; Setter property = "foreground" value = "red" /> & Lt; Setter property = "padding" value = "5" /> & Lt; Setter Estates = "Template" & gt; & Lt; Setter.Value & gt; & Lt; ControlTemplate TargetType = "Button" & gt; & Lt; Grid X: Name = "Grid Mainbooten" Render TransformAugin = "0.5, 0.5" & gt; & Lt; Grid.RenderTransform & gt; & Lt; ScaleTransform x: Name = "Scale transformform" center X = "0.5" center Y = "0.5" /> & Lt; /Grid.RenderTransform> & Lt; VisualStateManager.VisualStateGroups & gt; & Lt; VisualState Group x: Name = "General Location" & gt; & Lt; VisualState X: Name = "General" /> & Lt; VisualState X: Name = "mouseover" /> & Lt; VisualState X: Name = "Pressed" & gt; & Lt; Storyboard & gt; & Lt; DoubleAnimation Storyboard.TargetName = "scaleTransform" Storyboard.TargetProperty = "ScaleX" period = "0" to = "0.85" /> & Lt; / Storyboard & gt; & Lt; / VisualState & gt; & Lt; / VisualStateGroup & gt; & Lt; /VisualStateManager.VisualStateGroups> & Lt; Ellipse x: name = "oval" HorizontalAlignment = "muscles" VerticalAlignment = "muscle" StrokeThickness = "2" stroke = "{StaticResource standardBackground}" Fill = "{StaticResource standardBackground}" /> & Lt; Content Viewer Horizontal Element = "Center" Vertical Alignment = "Center" margin = "4, 8" /> & Lt; / Grid & gt; & Lt; / ControlTemplate & gt; & Lt; /Setter.Value> & Lt; / Setter & gt; & Lt; / Style & gt;   
 I think I could change ContentPresenter to a TextBlock, which would be fine for this particular application, but I'm looking for a more general solution.  
 Thank you, WTS   
 
 
 As Marcus Hütter said, the problem might be There is an underlying style for you that will define a  TextBlock  and when  button content is set to a string, then  TextBlock  will be created, where your In the  ContentPresenter  template, this will raise the  text block  underlying style and this is the reason why you are having this problem.  
 You can disable the built-in style for  TextBlock  s, which is the string by specifying the  DataTemplate  to  string  Is created for . Add the following for App.xaml  
  ... Application ... & gt; & Lt; Application.Resources & gt; & Lt; DataTimeplate xmlns: sys = "clr-namespace: system; assembly = mscorlib" datatype = "{x: type sys: string}" & gt; & Lt; TextBlock Text = "{Binding}" & gt; & Lt; TextBlock.Resources & gt; & Lt; Style TargetType = "{x: type text block}" /> & Lt; /TextBlock.Resources> & Lt; / TextBlock & gt; & Lt; / DataTemplate & gt; & Lt ;! --...-- & gt; & Lt; /Application.Resources> & Lt; / Application & gt;