Examine source code of YoSlash

{
  "name": "YoSlash",
  "description": "The official extension for YoSlash.",
  "homepage_url": "https://yoslash.com",
  "version": "1.0.11",
  "icons": {
    "16": "16.png",
    "32": "32.png",
    "48": "48.png",
    "128": "128.png",
    "192": "192.png",
    "512": "512.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "16.png",
      "32": "32.png",
      "48": "48.png",
      "128": "128.png",
      "192": "192.png",
      "512": "512.png"
    },
    "default_title": "YoSlash"
  },
  "omnibox": {
    "keyword": "yo"
  },
  "manifest_version": 2,
  "permissions": [
    "activeTab",
    "webRequest",
    "webRequestBlocking",
    "*://*.yolinks.app/*",
    "*://*.yoslash.com/*",
    "*://yo/*",
    "*://yodev/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{baf6f5c8-d1e5-4f06-8273-4a6bdc4df6de}"
    }
  }
}