Examine source code of Whale Shark

{
  "theme": {
    "images": {
      "theme_frame": "whaleshark.jpg"
    },
    "colors": {
      "frame": "#06174a",
      "tab_background_text": "#9bb78b"
    }
  },
  "version": "2.0",
  "name": "Whale Shark",
  "manifest_version": 2,
  "description": "Whale shark comin attchya,"
}