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+.DS_Store

Assets/icon/ios/README.md

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+## iTunesArtwork & iTunesArtwork@2x (App Icon) file extension:
+
+PNG extension is prepended to these two files - 
+
+While Apple suggested to omit the extension for these files, 
+the '.png' extension is actually required for iTunesConnect submission.
+
+This is done for you so you don't have to.
+
+However, for Ad_hoc or Enterprise distirbution, the extension should be removed
+from the files before adding to XCode to avoid error.
+
+refs: https://developer.apple.com/library/ios/qa/qa1686/_index.html
+
+## iTunesArtwork & iTunesArtwork@2x (App Icon) transparency handling:
+
+As images with alpha channels or transparencies cannot be set as an application's icon on
+iTunesConnect, all transparent pixels in your images will be converted into 
+solid blacks.
+
+To achieve the best result, you're advised to adjust the transparency settings 
+in your source files before converting them with makeAppIcon.
+
+refs: https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/MobileHIG/AppIcons.html