Examine source code of Kick Emote Holder

{
  "manifest_version": 3,
  "name": "Kick Emote Holder",
  "version": "5",
  "description": "Favorite emotes (Kick + 7TV + BTTV), quick-access bar above chat input, drag reorder, send-or-insert on click.",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://kick.com/*",
    "https://*.kick.com/*",
    "https://7tv.io/*",
    "https://api.betterttv.net/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://kick.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_title": "Kick Emote Holder",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "logo16.png",
    "32": "logo32.png",
    "48": "logo48.png",
    "128": "logo128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "kick-emote-holder@example.local",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}