CSS Peeper

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "CSS Peeper",
    "description": "Extract CSS and build beautiful styleguides.",
    "version": "0.5.6",
    "permissions": [
        "activeTab",
        "scripting"
    ],
    "host_permissions": [
        "https:\/\/fonts.googleapis.com\/"
    ],
    "background": {
        "service_worker": "background.js"
    },
    "icons": {
        "32": "logo-32.png",
        "64": "logo-64.png",
        "128": "logo-128.png",
        "512": "logo-512.png"
    },
    "action": {
        "default_title": "Show me the styles!"
    },
    "content_security_policy": {
        "extension_pages": "script-src 'self'; object-src 'self'"
    },
    "manifest_version": 3
}