Examine source code of Brushed and Brassy

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Brushed and Brassy",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg",
        "images/1.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top",
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat",
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(149, 119, 40, 0.32)",
      "toolbar_text": "rgb(255, 5, 19)",
      "frame": "rgb(225, 228, 231)",
      "tab_background_text": "rgb(250, 2, 2)",
      "toolbar_field": "rgba(255, 255, 255, 0.95)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(248, 228, 99)",
      "popup": "rgba(213, 182, 99, 0.95)",
      "popup_text": "rgb(36, 33, 14)",
      "button_background_active": "rgba(7, 0, 10, 0.78)",
      "icons": "rgb(24, 51, 4)",
      "popup_border": "rgb(51, 15, 218)",
      "popup_highlight_text": "rgba(124, 30, 157, 0.71)",
      "tab_loading": "rgb(248, 228, 99)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7d17dbbd-e193-4e4f-95e3-a7cf220f573d}"
    }
  }
}