UI Tutorial Fade 1.0.0
https://assetstore.unity.com/packages/slug/230845
Package List
Here are the packages with brief descriptions (if available):
[detail level 12]
 NAbu
 CRectTransformExtensionExtension class for RectTransform
 CRectTransformTutorialHoleTutorial hole that corresponds with rect transform provided by user
 CRectTutorialHoleTutorial hole that receives world rect, provided by user
 CRendererTutorialHoleTutorial hole which calculates world rect based on Renderer.bounds
 CTutorialFadeImageComponent which will render added holes in UI
 CTutorialFadeImageEditorCustom editor for TutorialFadeImage
 CTutorialHighlightHighlights RectTransform or Renderer
 CTutorialHoleThe base class for all tutorial holes