Examine source code of Sylestia Extension

{
  "name": "Sylestia Extension",
  "version": "2.5resigned1",
  "manifest_version": 2,
  "author": "taptothebeat",
  "icons": {
    "48": "icon-48.png"
  },
  "description": "Extension for Sylestia.",
  "browser_action": {
    "default_icon": "icon-48.png",
    "default_popup": "options.html"
  },
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.sylestia.com/view/hatchery/*"
      ],
      "js": [
        "usefulFunctions.js",
        "hatcheryImagesAsAdults.js"
      ]
    },
    {
      "matches": [
        "https://www.sylestia.com/view/pets/?petid*"
      ],
      "js": [
        "usefulFunctions.js",
        "petProfilePageBBCode.js",
        "petProfilePageShowHiddens.js",
        "displayAdultOnProfile.js"
      ]
    },
    {
      "matches": [
        "https://www.sylestia.com/search*"
      ],
      "js": [
        "usefulFunctions.js",
        "searchBBCode.js",
        "searchAdultToHatchling.js"
      ]
    },
    {
      "matches": [
        "https://www.sylestia.com/stables*"
      ],
      "js": [
        "jquery.js",
        "innerDOM.js",
        "usefulFunctions.js",
        "stableTabLink.js",
        "stableImagesAsHatchlings.js",
        "stable.js"
      ],
      "css": [
        "stable.css"
      ]
    },
    {
      "matches": [
        "https://www.sylestia.com/account/generator*"
      ],
      "js": [
        "usefulFunctions.js",
        "breedingLink.js"
      ]
    },
    {
      "matches": [
        "https://www.sylestia.com/account/wardrobe*"
      ],
      "js": [
        "jquery.js",
        "innerDOM.js",
        "usefulFunctions.js",
        "wardrobeHelds.js"
      ],
      "css": [
        "wardrobe.css"
      ]
    },
    {
      "matches": [
        "https://www.sylestia.com/explore*"
      ],
      "js": [
        "jquery.js",
        "usefulFunctions.js",
        "explore-keys.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{959c82ae-2414-49bd-a4d4-0a8fc72e09fd}"
    }
  }
}