Examine source code of 8-Bit Internet

{
  "name": "8-Bit Internet",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "8Bit Internet.png"
    },
    "colors": {
      "frame": "rgba(183, 224, 255, 1)",
      "tab_background_text": "rgba(1, 173, 1, 1)",
      "toolbar": "rgba(184, 222, 255, 0)",
      "toolbar_field": "rgba(184, 222, 255, 0)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(222, 48, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a97914c7-4987-4e56-ae4c-2ffe8409edf7}"
    }
  }
}