manifest.json

{
  "name": "Enhanced GitHub",
  "short_name": "Enhanced GitHub",
  "version": "5.0.12",
  "manifest_version": 2,
  "description": "Display repo size, size of each file, download link and option to copy file contents",
  "homepage_url": "https://github.com/softvar/enhanced-github",
  "author": "Varun Malhotra",
  "icons": {
    "16": "icons/enhanced-github16.png",
    "48": "icons/enhanced-github48.png",
    "128": "icons/enhanced-github128.png"
  },
  "browser_action": {
    "default_icon": "icons/enhanced-github48.png",
    "default_popup": "popup.html",
    "default_title": "Enhanced GitHub"
  },
  "permissions": ["*://*.github.com/*", "storage", "webRequest", "webNavigation"],
  "content_scripts": [
    {
      "matches": ["*://*.github.com/*"],
      "js": ["src/inject.js"]
    }
  ],
  "background": {
    "scripts": ["background.js"],
    "persistent": true
  },
  "options_ui": {
    "page": "options.html",
    "chrome_style": true
  }
}