Examine source code of Distilo

{
  "manifest_version": 2,
  "name": "Distilo",
  "version": "1.0.1",
  "description": "Save images, text, and links directly to Distilo - build your second brain with AI",
  "applications": {
    "gecko": {
      "id": "distilo@distilo.com",
      "strict_min_version": "58.0"
    }
  },
  "permissions": [
    "contextMenus",
    "storage",
    "activeTab",
    "notifications",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background/background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "images/icon16.png",
      "48": "images/icon48.png",
      "128": "images/icon128.png"
    }
  },
  "icons": {
    "16": "images/icon16.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "options_ui": {
    "page": "options/options.html"
  }
}