update eaf package

lisp/emacs-application-framework/app/video-player/buffer.py

@@ -31,6 +31,8 @@ class AppBuffer(Buffer):
     def __init__(self, buffer_id, url, config_dir, arguments, emacs_var_dict, module_path):
         Buffer.__init__(self, buffer_id, url, arguments, emacs_var_dict, module_path, True)
 
+        self.background_color = QColor(0, 0, 0)
+
         self.add_widget(VideoPlayerWidget())
         self.buffer_widget.play(url)
 
@@ -99,12 +101,12 @@ class VideoPlayerWidget(QWidget):
         self.media_player.setMedia(QMediaContent(QUrl.fromLocalFile(url)))
         self.media_player.play()
 
-    @interactive()
+    @interactive
     def play_forward(self):
         video_position = self.media_player.position()
         self.media_player.setPosition(video_position + self.video_seek_durcation)
 
-    @interactive()
+    @interactive
     def play_backward(self):
         video_position = self.media_player.position()
         self.media_player.setPosition(max(video_position - self.video_seek_durcation, 0))