Examine source code of Animated charizard

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Animated Charizard v2",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(225, 234, 239, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(50, 15, 2)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(238, 170, 100, 0.9)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(238, 170, 100)",
      "popup": "rgb(50, 15, 2)",
      "popup_text": "rgb(255, 255, 255)",
      "icons": "rgb(238, 170, 100)",
      "toolbar_top_separator": "rgba(225, 234, 239, 0)",
      "tab_loading": "rgb(238, 170, 100)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{27f291e8-1de3-4ed4-a617-da28dcaca210}"
    }
  }
}