Examine source code of Readwise Exporter

{
  "name": "Readwise Exporter",
  "version": "0.12",
  "manifest_version": 2,
  "description": "Use the Readwise Export browser extension to sync your highlights from Readwise to your favorite note-taking apps",
  "homepage_url": "https://readwise.io",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "default_locale": "en",
  "background": {
    "scripts": [
      "js/jquery/jquery.min.js",
      "js/rollbar.js",
      "src/bg/export_background.js"
    ],
    "persistent": false
  },
  "permissions": [
    "cookies",
    "storage",
    "alarms",
    "tabs",
    "*://*.notion.so/*",
    "*://*.readwise.io/*",
    "*://*.roamresearch.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.notion.so/*",
        "*://*.readwise.io/*",
        "*://*.roamresearch.com/*"
      ],
      "css": [
        "src/inject/export_inject.css"
      ],
      "all_frames": true
    },
    {
      "matches": [
        "*://*.notion.so/*",
        "*://*.readwise.io/*",
        "*://*.roamresearch.com/*"
      ],
      "js": [
        "js/jquery/jquery.min.js",
        "src/inject/export_inject.min.js"
      ],
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    "js/rollbar.js"
  ]
}