Examine source code of Context Search

{
  "manifest_version": 2,
  "default_locale": "en",
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "5.2.1",
  "author": "Olivier de Broqueville",
  "browser_specific_settings": {
    "gecko": {
      "id": "olivier.debroqueville@gmail.com",
      "strict_min_version": "79.0"
    }
  },
  "web_accessible_resources": [
    "/modal.html",
    "/history.html",
    "/bookmarks.html",
    "/images/*.png",
    "/scripts/modal.js",
    "/scripts/popup.js",
    "/scripts/Sortable.min.js",
    "/sidebar/search_results.html",
    "/scripts/search_results.js"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'; img-src 'self' data:;",
  "browser_action": {
    "default_popup": "popup.html"
  },
  "page_action": {
    "show_matches": [
      "<all_urls>"
    ],
    "hide_matches": [
      "*://accounts-static.cdn.mozilla.net/*",
      "*://accounts.firefox.com/*",
      "*://addons.cdn.mozilla.net/*",
      "*://addons.mozilla.org/*",
      "*://api.accounts.firefox.com/*",
      "*://content.cdn.mozilla.net/*",
      "*://discovery.addons.mozilla.org/*",
      "*://install.mozilla.org/*",
      "*://oauth.accounts.firefox.com/*",
      "*://profile.accounts.firefox.com/*",
      "*://support.mozilla.org/*",
      "*://sync.services.mozilla.com/*"
    ],
    "browser_style": false,
    "default_icon": "/icons/context-search.svg",
    "default_title": "Add search engine to Context Search"
  },
  "sidebar_action": {
    "browser_style": false,
    "default_icon": "/icons/context-search.svg",
    "default_title": "Search results",
    "default_panel": "/sidebar/search_results.html",
    "open_at_install": false
  },
  "background": {
    "scripts": [
      "/scripts/background.js"
    ]
  },
  "permissions": [
    "<all_urls>",
    "activeTab",
    "menus",
    "storage",
    "search",
    "tabs",
    "webRequest",
    "webRequestBlocking"
  ],
  "optional_permissions": [
    "nativeMessaging",
    "notifications",
    "downloads",
    "bookmarks",
    "history"
  ],
  "omnibox": {
    "keyword": "cs"
  },
  "commands": {
    "launch-icons-grid": {
      "suggested_key": {
        "default": "Alt+Shift+G"
      },
      "description": "Launch the icons grid"
    },
    "open-popup": {
      "suggested_key": {
        "default": "Ctrl+Alt+0",
        "mac": "Command+Alt+0"
      },
      "description": "Open the popup window"
    }
  },
  "icons": {
    "16": "icons/icon_16.png",
    "20": "icons/icon_20.png",
    "24": "icons/icon_24.png",
    "32": "icons/icon_32.png",
    "48": "icons/icon_48.png",
    "64": "icons/icon_64.png",
    "128": "icons/icon_128.png",
    "256": "icons/icon_256.png",
    "512": "icons/icon_512.png"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true,
    "browser_style": true
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "exclude_matches": [
        "https://paypal.com/*"
      ],
      "js": [
        "/scripts/selection.js"
      ]
    }
  ]
}