fix teaching settings

katrain/gui/popups.py

@@ -277,6 +277,10 @@ class ConfigTeacherPopup(QuickConfigGui):
 
         self.themes_spinner.value_refs = list(EVAL_COLORS.keys())
         self.options_grid.clear_widgets()
+
+        for k in ["dot color","point loss threshold","num undos","show dots","save dots"]:
+            self.options_grid.add_widget(DescriptionLabel(text=i18n._(k)))
+
         for i, (color, threshold, undo, show_dot, savesgf) in enumerate(
             zip(EVAL_COLORS[theme], thresholds, undos, show_dots, savesgfs)
         ):