Examine source code of Chexxo

{
  "manifest_version": 2,
  "name": "Chexxo",
  "short_name": "Chexxo",
  "description": "Browser extension that allows users to see the certificate quality of websites.",
  "version": "1.0.0",
  "author": "Chexxo",
  "homepage_url": "https://github.com/Chexxo",
  "icons": {
    "16": "./assets/logo16.png",
    "19": "./assets/logo19.png",
    "38": "./assets/logo38.png",
    "48": "./assets/logo48.png",
    "96": "./assets/logo96.png",
    "128": "./assets/logo128.png"
  },
  "content_security_policy": "script-src 'self'; object-src 'self';",
  "permissions": [
    "storage",
    "webNavigation",
    "<all_urls>",
    "webRequest",
    "webRequestBlocking"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "19": "./assets/logo19.png",
      "38": "./assets/logo38.png"
    }
  },
  "options_ui": {
    "page": "options.html"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "developer": {
    "name": "Chexxo",
    "url": "https://github.com/Chexxo/"
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "67.0"
    }
  }
}