Examine source code of Actual Teddit Redirect

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Actual Teddit Redirect",
  "description": "Actually redirect to Teddit without first hitting Reddit",
  "homepage_url": "https://github.com/excalamus/actual-teddit-redirect",
  "icons": {
    "240": "icons/redirect-240.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{20ba482c-facf-4e9c-b581-ca02f248f585}"
    }
  },
  "incognito": "spanning",
  "permissions": [
    "storage",
    "webRequest",
    "webRequestBlocking",
    "*://reddit.com/*",
    "*://www.reddit.com/*",
    "*://old.reddit.com/*"
  ],
  "background": {
    "scripts": [
      "actual-teddit-redirect.js"
    ]
  },
  "options_ui": {
    "page": "options.html"
  }
}