ui: masked transition for scrolling

looks better!

Assets/MemoryBox/Scenes/6_MyMemoriesScreen.unity

@@ -576,6 +576,76 @@ CanvasRenderer:
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   m_PrefabInternal: {fileID: 0}
   m_GameObject: {fileID: 382115068}
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+  m_Component:
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+  - component: {fileID: 391433711}
+  - component: {fileID: 391433710}
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+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
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+  m_GameObject: {fileID: 391433708}
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+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_Children:
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+  m_Father: {fileID: 1829635678}
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+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
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+  m_AnchorMax: {x: 1, y: 1}
+  m_AnchoredPosition: {x: 0, y: 0}
+  m_SizeDelta: {x: 0, y: 0}
+  m_Pivot: {x: 0.49999997, y: 1}
+--- !u!114 &391433710
+MonoBehaviour:
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+  m_PrefabInternal: {fileID: 0}
+  m_GameObject: {fileID: 391433708}
+  m_Enabled: 1
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+  m_Script: {fileID: -765806418, guid: f70555f144d8491a825f0804e09c671c, type: 3}
+  m_Name: 
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+  m_Color: {r: 1, g: 1, b: 1, a: 0.535}
+  m_RaycastTarget: 0
+  m_OnCullStateChanged:
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+    m_TypeName: UnityEngine.UI.MaskableGraphic+CullStateChangedEvent, UnityEngine.UI,
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+  m_FillAmount: 1
+  m_FillClockwise: 1
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   m_AnchorMax: {x: 1, y: 1}
@@ -1056,7 +1126,7 @@ RectTransform:
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   m_Father: {fileID: 1829635678}
-  m_RootOrder: 4
+  m_RootOrder: 3
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
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   m_AnchorMax: {x: 1, y: 0}
@@ -1372,12 +1442,12 @@ RectTransform:
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   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
-  m_Father: {fileID: 1829635678}
+  m_Father: {fileID: 391433709}
   m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
-  m_AnchorMin: {x: 0, y: 1}
-  m_AnchorMax: {x: 0, y: 1}
-  m_AnchoredPosition: {x: 30, y: -108}
+  m_AnchorMin: {x: 0.5, y: 1}
+  m_AnchorMax: {x: 0.5, y: 1}
+  m_AnchoredPosition: {x: -330, y: -108}
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   m_Pivot: {x: 0, y: 0.5}
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   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
-  m_Father: {fileID: 1829635678}
+  m_Father: {fileID: 391433709}
   m_RootOrder: 1
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0.5, y: 1}
@@ -2248,7 +2318,7 @@ MonoBehaviour:
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   m_HandleRect: {fileID: 786590247}
   m_Direction: 2
-  m_Value: 0.9937448
+  m_Value: 0.99374515
   m_Size: 0.7504595
   m_NumberOfSteps: 0
   m_OnValueChanged:
@@ -2316,9 +2386,8 @@ RectTransform:
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   m_Children:
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-  - {fileID: 1648636759}
   - {fileID: 628593513}
+  - {fileID: 391433709}
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@@ -2405,7 +2474,7 @@ MonoBehaviour:
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