Examine source code of CSS Inspector — Hover to Copy CSS

Inspect and view changes in CSS Inspector — Hover to Copy CSS source codes across current and past versions

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manifest.json

{
  "manifest_version": 2,
  "name": "CSS Inspector — Hover to Copy CSS",
  "description": "Hover and click any element to see its computed CSS styles. Copy with one click. Free.",
  "version": "1.0.1",
  "default_locale": "en",
  "permissions": [
    "activeTab",
    "storage",
    "scripting",
    "sidePanel"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "sidebar_action": {
    "default_panel": "sidepanel.html",
    "default_title": "CSS Inspector"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    }
  ],
  "browser_action": {
    "default_title": "CSS Inspector",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c5080449-10f6-4bb5-a10e-f5468b14d776}"
    }
  }
}