Examine source code of Dark Samus 2

{
  "theme": {
    "images": {
      "theme_frame": "DarkSAmus2.jpeg"
    },
    "colors": {
      "frame": "#3ac4bb",
      "tab_background_text": "#3ac4bb"
    }
  },
  "version": "2.0",
  "name": "Dark Samus 2",
  "manifest_version": 2,
  "description": "Yet another Dark Samus From Metroid."
}