Ajout du GUI

kivy/effects/__init__.py

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+'''
+Effects
+=======
+
+.. versionadded:: 1.7.0
+
+Everything starts with the :class:`~kinetic.KineticEffect`, the base class for
+computing velocity out of a movement.
+
+This base class is used to implement the :class:`~scroll.ScrollEffect`, a base
+class used for our :class:`~kivy.uix.scrollview.ScrollView` widget effect.
+We have multiple implementations:
+
+- :class:`~kivy.effects.scroll.ScrollEffect`: base class used for implementing
+  an effect. It only calculates the scrolling and the overscroll.
+- :class:`~kivy.effects.dampedscroll.DampedScrollEffect`: uses the overscroll
+  information to allow the user to drag more than expected. Once the user stops
+  the drag, the position is returned to one of the bounds.
+- :class:`~kivy.effects.opacityscroll.OpacityScrollEffect`: uses the overscroll
+  information to reduce the opacity of the scrollview widget. When the user
+  stops the drag, the opacity is set back to 1.
+
+'''