Examine source code of Blue-eyed Snake

{
  "theme": {
    "images": {
      "theme_frame": "BWsnakeblueeyesheader.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#16c2f2"
    }
  },
  "version": "2.0",
  "name": "Blue-eyed Snake",
  "manifest_version": 2,
  "description": "snake, blue, black, gray, boa, emerald tree boa, blue eyes"
}