Tetris/TetrisUI/Media.xcassets/TetrominoBlue.colorset/Contents.json

{
  "info" : {
    "version" : 1,
    "author" : "xcode"
  },
  "colors" : [
    {
      "idiom" : "universal",
      "color" : {
        "color-space" : "srgb",
        "components" : {
          "red" : "0",
          "alpha" : "1.000",
          "blue" : "214",
          "green" : "79"
        }
      }
    }
  ]
}