Examine source code of Love Swans

{
  "theme": {
    "images": {
      "theme_frame": "LoveSwansheader.jpg"
    },
    "colors": {
      "frame": "#04c2c2",
      "tab_background_text": "#cfd604"
    }
  },
  "version": "2.0",
  "name": "Love Swans",
  "manifest_version": 2,
  "description": "Two Swans meet together in front of a bright full moon, while on the water. Lilly pads float on top of the pond."
}