Examine source code of SideApp Ultra

{
  "name": "SideApp Ultra",
  "description": "SideApp Ultra Allows You To Open Websites In The Sidebar Or In A New Window.",
  "applications": {
    "gecko": {
      "id": "sbfosu.ff@Scripty_via_The.UNITY.Empire",
      "strict_min_version": "42.0"
    }
  },
  "version": "1.0.0.784resigned1",
  "permissions": [
    "storage",
    "tabs",
    "webRequest",
    "http://*/*",
    "https://*/*"
  ],
  "background": {
    "scripts": [
      "j/sideapp.js"
    ]
  },
  "browser_action": {
    "default_icon": "scripty.png",
    "default_title": "SideApp Ultra"
  },
  "sidebar_action": {
    "default_icon": {
      "512": "scripty.png"
    },
    "default_title": "SideApp Ultra",
    "default_panel": "menu.html"
  },
  "content_scripts": [
    {
      "css": [
        "c/css.css"
      ],
      "js": [
        "j/sideapp.js",
        "j/context.js",
        "j/frame.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    "p/cnr.html",
    "menu.html",
    "j/frame.js",
    "f/FontAwesome.otf"
  ],
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Alt+3"
      },
      "description": "SideApp Ultra"
    }
  },
  "icons": {
    "512": "scripty.png"
  },
  "manifest_version": 2
}