Examine source code of simple solid black - gold

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "BLACK-GOLD",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(69, 69, 69)",
      "toolbar_text": "rgb(220, 181, 40)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(235, 194, 47)",
      "toolbar_field": "rgb(182, 180, 174)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(220, 181, 40)",
      "popup": "rgb(182, 180, 174)",
      "popup_text": "rgb(0, 0, 0)",
      "tab_loading": "rgb(220, 181, 40)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8460f9b1-2377-47e0-8720-345593ff967c}"
    }
  }
}