Examine source code of Trials Tracker

{
  "name": "Trial Tracker",
  "description": "Track free trials with reminders, cloud backup, import/export, and stats so you never miss a cancellation date.",
  "permissions": [
    "storage",
    "alarms",
    "notifications",
    "contextMenus",
    "downloads",
    "identity",
    "https://api.trialstracker.online/*"
  ],
  "background": {
    "scripts": [
      "lib/chrome-api-wrapper.js",
      "lib/background-sync-payload.js",
      "lib/background-device-identity.js",
      "lib/trial-domain.js",
      "lib/settings-service.js",
      "lib/statistics-service.js",
      "lib/storage-contract.js",
      "lib/message-contract.js",
      "lib/trial-storage-service.js",
      "lib/background-i18n.js",
      "lib/background-sync-utils.js",
      "lib/sso-payload-normalizer.js",
      "lib/background-sync-service.js",
      "lib/background-trial-manager.js",
      "lib/background-context-menu-service.js",
      "lib/background-backup-service.js",
      "lib/background-notification-service.js",
      "lib/background-message-router.js",
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "exclude_matches": [
        "*://google.com/*",
        "*://*.google.com/*",
        "*://bing.com/*",
        "*://*.bing.com/*",
        "*://search.yahoo.com/*",
        "*://duckduckgo.com/*",
        "*://*.duckduckgo.com/*",
        "*://yandex.com/*",
        "*://*.yandex.com/*",
        "*://yandex.ru/*",
        "*://*.yandex.ru/*",
        "*://baidu.com/*",
        "*://*.baidu.com/*",
        "*://ecosia.org/*",
        "*://*.ecosia.org/*",
        "*://search.brave.com/*",
        "*://ask.com/*",
        "*://*.ask.com/*"
      ],
      "js": [
        "lib/content-detection-utils.js",
        "lib/content-monitoring-utils.js",
        "lib/content-i18n.js",
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "64": "icons/icon64.png",
    "96": "icons/icon96.png",
    "128": "icons/icon128.png"
  },
  "web_accessible_resources": [
    "monitoring.css",
    "theme.css"
  ],
  "manifest_version": 2,
  "options_ui": {
    "page": "popup.html",
    "open_in_tab": true,
    "browser_style": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "trial-tracker@local",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "version": "1.8.6",
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "64": "icons/icon64.png",
      "96": "icons/icon96.png",
      "128": "icons/icon128.png"
    }
  }
}