Examine source code of Reader View AZ

{
  "version": "0.1.6",
  "manifest_version": 2,
  "name": "Reader View",
  "offline_enabled": true,
  "homepage_url": "https://mybrowseraddon.com/reader-view.html",
  "description": "Open any page in reader view mode; light, dark or sepia and clutter free.",
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "permissions": [
    "storage",
    "tabs",
    "contextMenus",
    "activeTab"
  ],
  "browser_action": {
    "default_title": "Reader View",
    "default_icon": {
      "16": "data/icons/16.png",
      "32": "data/icons/32.png",
      "48": "data/icons/48.png",
      "64": "data/icons/64.png"
    }
  },
  "commands": {
    "_execute_browser_action": {
      "description": "Reader View",
      "suggested_key": {
        "mac": "Alt+Shift+V",
        "default": "Alt+Shift+V"
      }
    }
  },
  "icons": {
    "16": "data/icons/16.png",
    "32": "data/icons/32.png",
    "48": "data/icons/48.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png"
  },
  "web_accessible_resources": [
    "data/icons/16.png",
    "data/icons/32.png",
    "data/icons/48.png",
    "data/icons/64.png",
    "data/icons/128.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{da243ab9-2fc2-4263-b7db-cd946eb262b3}"
    }
  }
}