Examine source code of Olive and Orange

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Olive and Orange",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(103, 121, 98)",
      "toolbar_text": "rgb(250, 178, 32)",
      "frame": "rgb(76, 80, 75)",
      "tab_background_text": "rgb(219, 207, 181)",
      "toolbar_field": "rgb(77, 77, 77)",
      "toolbar_field_text": "rgb(255, 233, 192)",
      "tab_line": "rgb(255, 146, 4)",
      "popup": "rgb(69, 81, 65)",
      "popup_text": "rgb(219, 206, 179)",
      "frame_inactive": "rgb(116, 118, 115)",
      "tab_loading": "rgb(255, 146, 4)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e0f368e0-09f9-4f66-b85b-511a35888524}"
    }
  }
}