Examine source code of Card Clip

{
  "manifest_version": 2,
  "name": "Card Clip",
  "version": "1.4.0",
  "description": "Adds an EDHREC-like clipboard feature to Scryfall",
  "content_scripts": [
    {
      "matches": [
        "*://scryfall.com/*",
        "*://tagger.scryfall.com/*"
      ],
      "js": [
        "ContentScripts/Clipboard.js",
        "ContentScripts/Animation.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "img/duplicate.svg",
    "img/trash.svg",
    "img/clip.svg"
  ],
  "icons": {
    "16": "img/icon/logo16.png",
    "32": "img/icon/logo32.png",
    "48": "img/icon/logo48.png",
    "128": "img/icon/logo128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e6b645bb-7c51-4f40-8167-8bcbbf3394bb}"
    }
  }
}