Examine source code of StormJournal

{
  "manifest_version": 2,
  "name": "StormJournal",
  "version": "1.4.1",
  "description": "Quick access to definitions, synonyms, antonyms and rhyming words.",
  "icons": {
    "16": "icons/ICON-16.png",
    "24": "icons/ICON-24.png",
    "32": "icons/ICON-32.png",
    "48": "icons/ICON-48.png",
    "96": "icons/ICON-96.png",
    "128": "icons/ICON-128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options/options.html",
    "browser_style": true,
    "chrome_style": true
  },
  "permissions": [
    "activeTab",
    "contextMenus",
    "storage",
    "webRequest",
    "https://app.stormjournal.com/*",
    "https://api.datamuse.com/*",
    "https://api.dictionaryapi.dev/*"
  ],
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "16": "icons/ICON-16.png",
      "24": "icons/ICON-24.png",
      "32": "icons/ICON-32.png",
      "48": "icons/ICON-48.png",
      "96": "icons/ICON-96.png",
      "128": "icons/ICON-128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "js": [
        "contentScript.js"
      ]
    }
  ],
  "applications": {
    "gecko": {
      "id": "satellites@stormjournal.com"
    }
  },
  "web_accessible_resources": [
    "icons/*",
    "styles/*"
  ],
  "commands": {
    "toggleStation": {
      "suggested_key": {
        "default": "MacCtrl+Shift+J"
      },
      "description": "Send a 'toggle-station' event to the extension"
    },
    "toggleSatelliteNote": {
      "suggested_key": {
        "default": "MacCtrl+Shift+N"
      },
      "description": "Send a 'toggle-satellite' event to the extension"
    }
  }
}