Examine source code of Dark and Awesome

{
  "manifest_version": 2,
  "version": "1.1.0",
  "name": "Dark and Awesome",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(27, 34, 49)",
      "toolbar_text": "rgb(233, 234, 239)",
      "frame": "rgb(27, 34, 49)",
      "tab_background_text": "rgb(233, 234, 239)",
      "toolbar_field": "rgba(119, 123, 150, 0.5)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(119, 123, 150)",
      "popup": "rgb(27, 34, 49)",
      "popup_text": "rgb(216, 217, 222)",
      "popup_highlight_text": "rgba(77, 56, 25, 0)",
      "tab_loading": "rgb(119, 123, 150)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8eef669e-1552-4d75-8761-5feae402d8ae}"
    }
  }
}