Examine source code of Reddit Embed Linker

{
  "name": "Reddit Embed Linker",
  "description": "Chrome extensions that adds a button to Reddit posts that copies an embeddable link to clipboard for services like Discord.",
  "version": "1.3.2",
  "manifest_version": 2,
  "permissions": [
    "activeTab"
  ],
  "icons": {
    "16": "/images/logo_16.png",
    "32": "/images/logo_32.png",
    "48": "/images/logo_48.png",
    "128": "/images/logo_128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.reddit.com/r/*/comments/*"
      ],
      "run_at": "document_idle",
      "js": [
        "js/functions.js",
        "js/injectPost.js"
      ],
      "css": [
        "styling.css"
      ]
    },
    {
      "matches": [
        "*://www.reddit.com/",
        "*://www.reddit.com/r/*"
      ],
      "run_at": "document_idle",
      "js": [
        "js/functions.js",
        "js/injectMain.js"
      ],
      "css": [
        "styling.css"
      ]
    }
  ]
}