Examine source code of Figma (Open in App)

{
  "manifest_version": 2,
  "name": "Figma (Open in App)",
  "version": "1.2resigned1",
  "description": "Open Figma files in Desktop Application. Download: figma.com/downloads",
  "browser_action": {
    "default_icon": "icons/icon-32.png",
    "default_title": "Figma",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "tabs",
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "js/inject.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b6f7cdc8-7676-41b9-a148-574d9ab26f7a}"
    }
  }
}