Examine source code of Reliefox Basic

{
  "manifest_version": 2,
  "version": "1.8",
  "name": "Reliefox Basic",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png",
        "images/1.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top",
        "left top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat",
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgb(24, 24, 24)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(192, 192, 192)",
      "toolbar_field": "rgba(48, 48, 48, 0.98)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(255, 255, 255, 0)",
      "popup": "rgba(24, 24, 24, 0.98)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgba(224, 224, 224, 0.25)",
      "popup_highlight": "rgba(224, 224, 224, 0.25)",
      "sidebar_highlight": "rgba(224, 224, 224, 0.25)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(24, 24, 24)",
      "tab_loading": "rgba(255, 255, 255, 0.5)",
      "tab_selected": "rgba(224, 224, 224, 0.25)",
      "toolbar_field_border_focus": "rgba(192, 192, 192, 0.5)",
      "toolbar_field_highlight": "rgba(192, 192, 192, 0.5)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{35731de2-a639-4e14-9daa-ea7e1387c5a6}"
    }
  }
}