Examine source code of ATO Blocker

{
  "name": "ATO Blocker",
  "description": "A super minimal blocker of ads, trackers and annoyances which works out of the box",
  "manifest_version": 2,
  "version": "1.1.1",
  "homepage_url": "https://github.com/remusao/blockrz",
  "author": "remusao",
  "icons": {
    "128": "./icons/icon-o-0.png"
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "webNavigation",
    "tabs",
    "<all_urls>",
    "storage",
    "unlimitedStorage"
  ],
  "background": {
    "scripts": [
      "background.bundle.js"
    ]
  },
  "browser_action": {
    "default_title": "ΛΤΟ Blocker"
  },
  "content_scripts": [
    {
      "match_about_blank": true,
      "all_frames": true,
      "js": [
        "content-script.bundle.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_start"
    }
  ]
}