Examine source code of BIRDSiVIEW TabGrid

{
  "manifest_version": 3,
  "name": "Birdsİview TabGrid",
  "version": "3.34",
  "description": "Brings Chrome’s mobile-style tab grid to Firefox, with support for native tab groups",
  "icons": {
    "48": "/lib/icons/tabs-grid.svg",
    "96": "/lib/icons/tabs-grid.svg"
  },
  "permissions": [
    "tabs",
    "storage",
    "activeTab",
    "contextualIdentities",
    "bookmarks",
    "tabGroups",
    "contextMenus",
    "menus"
  ],
  "optional_host_permissions": [
    "<all_urls>"
  ],
  "commands": {
    "open-tabgrid-space": {
      "suggested_key": {
        "default": "Ctrl+Shift+Space",
        "mac": "Command+Shift+Space"
      },
      "description": "Open TabGrid with Ctrl+Shift+Space"
    },
    "open-tabgrid-period": {
      "suggested_key": {
        "default": "Ctrl+Shift+Period",
        "mac": "Command+Shift+Period"
      },
      "description": "Open TabGrid with Ctrl+Shift+Period"
    },
    "open-tabgrid-y": {
      "suggested_key": {
        "default": "Ctrl+Shift+Y",
        "mac": "Command+Shift+Y"
      },
      "description": "Open TabGrid with Ctrl+Shift+Y"
    }
  },
  "action": {
    "default_icon": "/lib/icons/tabs-grid.svg",
    "default_title": "Open TabGrid",
    "theme_icons": [
      {
        "light": "/lib/icons/tabs-grid-light.svg",
        "dark": "/lib/icons/tabs-grid.svg",
        "size": 16
      },
      {
        "light": "/lib/icons/tabs-grid-light.svg",
        "dark": "/lib/icons/tabs-grid.svg",
        "size": 32
      }
    ]
  },
  "background": {
    "scripts": [
      "browser-compat.js",
      "thumbnail-db.js",
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "birdsiview_tabgrid@light_seeker.ca",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "strict_min_version": "142.0"
    }
  }
}