Examine source code of Star History

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Star History",
  "description": "A chrome extension showing star history graph of current GitHub repository",
  "homepage_url": "https://github.com/bytebase/star-history",
  "author": "bytebase",
  "version": "2.0",
  "manifest_version": 3,
  "background": {
    "page": "./background.html"
  },
  "action": {
    "default_popup": "./extension/popup.html"
  },
  "host_permissions": [
    "https://api.github.com/"
  ],
  "icons": {
    "128": "icon.png"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{32f30417-23b7-4500-a597-5c5df137d454}"
    }
  }
}