Examine source code of SteamPunk Fox

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "SteamFox",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(10, 10, 10, 0.65)",
      "toolbar_text": "rgb(238, 220, 187)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(221, 93, 61)",
      "toolbar_field": "rgba(0, 0, 0, 0.57)",
      "toolbar_field_text": "rgb(238, 220, 187)",
      "tab_line": "rgb(238, 220, 187)",
      "popup": "rgba(0, 0, 0, 0.9)",
      "popup_text": "rgb(238, 220, 187)",
      "button_background_hover": "rgba(238, 220, 187, 0.3)",
      "icons": "rgba(255, 124, 0, 0.75)",
      "ntp_background": "rgb(0, 0, 0)",
      "tab_loading": "rgb(238, 220, 187)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6bb4acd8-d2ae-4a0e-a9ad-d19040048a1b}"
    }
  }
}