Examine source code of Fruit assorti

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Fruit assorti",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(255, 255, 255, 0.5)",
      "toolbar_text": "rgb(11, 53, 0)",
      "frame": "rgb(44, 128, 0)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(255, 255, 255, 0.75)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(255, 135, 72)",
      "popup": "rgb(218, 245, 255)",
      "popup_text": "rgb(131, 0, 51)",
      "toolbar_field_focus": "rgb(255, 255, 255)",
      "tab_loading": "rgb(255, 135, 72)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{cfe41f58-8c23-4267-8b54-47b9dd77cc6a}"
    }
  }
}