Examine source code of Teddit Redirect

{
  "name": "Teddit Redirect",
  "description": "Ensure Teddit always loads instead of Reddit",
  "version": "1.0.0",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "240": "img/redirect-240.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{1e5005a8-497d-7d7b-c007-34584f6d5c30}"
    }
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "*://reddit.com/*",
    "*://www.reddit.com/*",
    "*://old.reddit.com/*",
    "*://np.reddit.com/*",
    "*://new.reddit.com/*",
    "*://amp.reddit.com/*"
  ]
}