Examine source code of Demodal - Block modals and overlays

{
  "name": "Demodal - Block modals and overlays",
  "description": "Demodal automatically removes content blocking modals including paywalls, discount offers, promts to sign up or enter your email address and more.",
  "version": "1.0.4",
  "manifest_version": 2,
  "default_locale": "en",
  "background": {
    "page": "background/background.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "js": [
        "common/common.js",
        "content/content.js"
      ]
    }
  ],
  "permissions": [
    "storage",
    "activeTab"
  ],
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "128": "images/icon-128.png",
      "256": "images/icon-256.png"
    }
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "icons": {
    "128": "images/icon-128.png",
    "256": "images/icon-256.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a8445bf1-5494-49bf-9af5-a830e5bf3309}"
    }
  }
}