The root of arm is designed about yellow color with alpha. why does it change to grey color between arm and body slots in iOS application? Android app doesn't have this issue.
why arm with alpha is grey color
Is Premultiply Alpha also enabled in the iOS application?
http://esotericsoftware.com/spine-texture-packer#Premultiply-alpha
Erika Enabled Premultiply Alpha & disabled 2 PNG configs in Xcode Build Settings(as attached), solved my problem. Thanks for your hint!