For detail explanation, see the blog entry Color Checkbox.
In summary, to change the text color of the label of a Group, you have to disable "theme" for that control.
Use DfAllEnt
External_Function SetWindowTheme "SetWindowTheme" UXTHEME.DLL Handle h Integer i1 Integer i2 Returns Integer
Object oMain is a Panel
Object oGroup is a Group
Set Size to 50 50
Set TextColor to clRed
Set Label to "Test"
Procedure Page_Object Integer iPage
Integer ia iz
Forward Send Page_Object iPage
Move 0 to iz
Move (AddressOf(iz)) to ia
Move (SetWindowTheme(Window_Handle(Self),ia,ia)) to iPage // Instead of Form_Window_Handle
End_Procedure // Page_Object
End_Object // oCheck
Object oButton is a Button // VDF Panels require at least one focusable object.
Set Location to 50 0
End_Object
End_Object // oMain
Start_UI
