Examine source code of chrome green

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "green",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(251, 249, 246)",
      "toolbar_text": "rgb(27, 28, 26)",
      "frame": "rgb(222, 229, 216)",
      "tab_background_text": "rgb(60, 64, 67)",
      "toolbar_field": "rgb(234, 234, 229)",
      "toolbar_field_text": "rgb(27, 28, 26)",
      "tab_line": "rgb(251, 249, 246)",
      "popup": "rgb(251, 249, 246)",
      "popup_text": "rgb(27, 28, 26)",
      "button_background_active": "rgb(234, 232, 226)",
      "button_background_hover": "rgb(238, 236, 234)",
      "popup_border": "rgb(251, 249, 246)",
      "popup_highlight_text": "rgb(27, 28, 26)",
      "popup_highlight": "rgb(238, 236, 233)",
      "sidebar_border": "rgb(251, 249, 246)",
      "sidebar_highlight_text": "rgb(27, 28, 26)",
      "sidebar_highlight": "rgb(226, 227, 221)",
      "sidebar_text": "rgb(27, 28, 26)",
      "sidebar": "rgb(251, 249, 246)",
      "toolbar_bottom_separator": "rgb(251, 249, 246)",
      "toolbar_field_border_focus": "rgb(86, 98, 83)",
      "toolbar_field_focus": "rgb(251, 249, 246)",
      "toolbar_field_highlight_text": "rgb(251, 249, 246)",
      "toolbar_field_highlight": "rgb(86, 98, 83)",
      "toolbar_top_separator": "rgb(251, 249, 246)",
      "tab_loading": "rgb(251, 249, 246)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{de86e2b3-7bad-489f-9ee2-aefc97f721e3}"
    }
  }
}