Examine source code of QA overlays

{
  "manifest_version": 3,
  "name": "QA overlays",
  "version": "1.0.0",
  "description": "In-browser QA overlays: measure, guides, grids, accessibility.",
  "icons": {
    "16": "public/icons/icon-16.png",
    "48": "public/icons/icon-48.png",
    "128": "public/icons/icon-128.png"
  },
  "action": {
    "default_title": "QA overlays"
  },
  "content_scripts": [
    {
      "js": [
        "assets/index.ts-loader-XIxBenRO.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "commands": {
    "toggle-toolbar": {
      "suggested_key": {
        "default": "Alt+Shift+D"
      },
      "description": "Show / hide the QA overlays toolbar"
    },
    "toggle-measure": {
      "suggested_key": {
        "default": "Alt+Shift+M"
      },
      "description": "Toggle the Measure tool"
    },
    "toggle-grid": {
      "suggested_key": {
        "default": "Alt+Shift+G"
      },
      "description": "Toggle the Grid overlay"
    },
    "run-a11y": {
      "suggested_key": {
        "default": "Alt+Shift+A"
      },
      "description": "Run an accessibility scan"
    }
  },
  "background": {
    "scripts": [
      "service-worker-loader.js"
    ],
    "type": "module"
  },
  "sidebar_action": {
    "default_panel": "src/panel/index.html",
    "default_title": "QA overlays"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "marcin@increo.no",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "tabs"
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "<all_urls>"
      ],
      "resources": [
        "assets/ext-CKDIH-tU.js",
        "assets/storage-BRRcjBAs.js",
        "assets/messaging-BV0cKP5Q.js",
        "assets/axe-gGRnms4u.js",
        "assets/index.ts-ewH0QcNg.js"
      ]
    }
  ]
}