Examine source code of Default Dark Original

{
  "manifest_version": 2,
  "version": "1.2.2resigned1",
  "name": "Default Dark Original",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(50, 50, 52)",
      "bookmark_text": "rgb(246, 248, 250)",
      "frame": "rgb(12, 12, 13)",
      "tab_background_text": "rgb(146, 149, 152)",
      "toolbar_field": "rgb(71, 71, 73)",
      "toolbar_field_text": "rgb(249, 249, 250)",
      "tab_line": "rgb(10, 132, 255)",
      "popup": "rgba(42,42,46, 1)",
      "popup_border": "rgba(76,76,81, 1)",
      "popup_text": "rgb(197, 197, 198)",
      "popup_highlight": "rgb(92,92,97)",
      "tab_loading": "rgb(10, 132, 255)",
      "ntp_background": "rgb(42, 42, 46)",
      "ntp_text": "rgba(249, 249, 250, 0.8)",
      "sidebar": "rgba(56,56,61, 1)",
      "sidebar_text": "rgba(249,249,233, 1)",
      "sidebar_highlight": "rgba(67,67,71, 1)",
      "sidebar_highlight_text": "rgba(249,249,233, 1)",
      "sidebar_border": "rgba(76,76,81, 1)",
      "button_background_active": "rgba(127,127,128, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e945c11d-017f-47c7-812e-18e5f913ca24}"
    }
  }
}