Examine source code of Reddit Code Highlight

{
  "manifest_version": 2,
  "name": "Reddit Code Highlight",
  "description": "Applies syntax highlighting to code blocks on Reddit.",
  "version": "1.0.0",
  "icons": {
    "48": "assets/icon48.png",
    "128": "assets/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.reddit.com/*"
      ],
      "js": [
        "content_scripts/index.js"
      ],
      "css": [
        "vendor/prism.css",
        "content_scripts/index.css"
      ]
    }
  ]
}