Renamed widget; moved to use signals; fixed label update

src/core/containers/header_container.py

@@ -6,7 +6,6 @@ gi.require_version('Gtk', '3.0')
 from gi.repository import Gtk
 
 # Application imports
-from ..widgets.buttons.open_files_button import OpenFilesButton
 from ..widgets.controls.transparency_scale import TransparencyScale
 
 
@@ -38,7 +37,6 @@ class HeaderContainer(Gtk.Box):
         button = Gtk.Button(label = "Interactive Debug")
         button.connect("clicked", self._interactive_debug)
 
-        self.add( OpenFilesButton() )
         self.add( TransparencyScale() )
         self.add(button)