Examine source code of Auto Reader View

{
  "manifest_version": 2,
  "name": "auto-reader-view",
  "description": "Enable Reader Mode automatically on chosen websites",
  "version": "1.0.3",
  "homepage_url": "https://github.com/pmarchwiak/auto-reader-view",
  "applications": {
    "gecko": {
      "id": "@auto-reader-view"
    }
  },
  "icons": {
    "48": "icons/miu-book-icon-48.png"
  },
  "permissions": [
    "storage",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "16": "icons/miu-book-icon-16.png",
      "32": "icons/miu-book-icon-32.png",
      "64": "icons/miu-book-icon-64.png"
    },
    "default_title": "Auto Reader Mode",
    "default_popup": "popup/panel.html"
  },
  "options_ui": {
    "page": "options/options.html",
    "browser_style": true
  }
}