Gmail Notes - Add notes to email in Gmail

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "action": {
        "default_icon": {
            "19": "icons\/icon19.png",
            "38": "icons\/icon38.png"
        }
    },
    "background": {
        "service_worker": "background.js"
    },
    "content_scripts": [
        {
            "js": [
                "app\/jquery.js",
                "app\/moment.js",
                "app\/underscore.js",
                "app\/jstz.js",
                "app\/moment-timezone-with-data-2010-2020.js",
                "app\/rightinbox-client-chrome.js",
                "content.js"
            ],
            "matches": [
                "http:\/\/mail.google.com\/*",
                "https:\/\/mail.google.com\/*",
                "https:\/\/inbox.google.com\/*"
            ],
            "run_at": "document_end"
        }
    ],
    "default_locale": "en",
    "description": "__MSG_Application_description__",
    "host_permissions": [
        "https:\/\/*.rightinbox.com\/",
        "https:\/\/checkout.rightinbox.com\/",
        "https:\/\/poll.rightinbox.com\/"
    ],
    "icons": {
        "16": "icons\/icon16.png",
        "48": "icons\/icon48.png",
        "128": "icons\/icon128.png"
    },
    "manifest_version": 3,
    "name": "__MSG_Application_Name__",
    "permissions": [
        "storage"
    ],
    "version": "1.0.6",
    "web_accessible_resources": [
        {
            "resources": [
                "icons\/white-note.svg",
                "icons\/red-note.svg"
            ],
            "matches": [
                "http:\/\/mail.google.com\/*",
                "https:\/\/mail.google.com\/*"
            ]
        }
    ]
}