Mixmax Button Shrinker

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 2,
    "name": "Mixmax Button Shrinker",
    "description": "Shrinks Mixmax buttons down to an icon (Inbox by Gmail)",
    "version": "3.5",
    "icons": {
        "128": "icon128.png"
    },
    "permissions": [
        "activeTab",
        "https:\/\/inbox.google.com\/*"
    ],
    "content_scripts": [
        {
            "matches": [
                "https:\/\/inbox.google.com\/*"
            ],
            "css": [
                "mm.css"
            ],
            "js": [
                "mm.js"
            ],
            "run_at": "document_end"
        }
    ]
}