Examine source code of Image Insight — Hover

{
  "manifest_version": 3,
  "name": "Image Insight — Hover",
  "version": "1.3.1",
  "description": "Instantly inspect image dimensions and file size with a mouse hover. Get resolution and weight for any image.",
  "author": "Adedoyin Akande",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_title": "Image Insight — Preferences",
    "default_popup": "options.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "all_frames": true,
      "run_at": "document_idle"
    }
  ],
  "permissions": [
    "storage",
    "downloads"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "commands": {
    "toggle-enabled": {
      "suggested_key": {
        "default": "Alt+Shift+I"
      },
      "description": "Enable or disable Image Insight"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "image_insight@aeadedoyin.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}