OTP/OTP/Assets.xcassets/AccentColor.colorset/Contents.json

{
  "colors" : [
    {
      "color" : {
        "platform" : "universal",
        "reference" : "systemMintColor"
      },
      "idiom" : "universal"
    }
  ],
  "info" : {
    "author" : "xcode",
    "version" : 1
  }
}