Examine source code of I-am-a-hacker-!!!

{
  "name": "index",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "index.jpg"
    },
    "colors": {
      "frame": "rgba(227, 229, 232, 0)",
      "tab_background_text": "rgba(0, 255, 13, 1)",
      "toolbar": "rgba(5, 20, 7, 0.87)",
      "bookmark_text": "rgba(0, 189, 25, 1)",
      "toolbar_field": "rgba(0, 0, 0, 1)",
      "toolbar_field_text": "rgba(18, 117, 5, 1)"
    }
  }
}