TabSize tab-width extension

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "TabSize tab-width extension",
    "version": "1.0.0",
    "description": "For change width of the tab character in Pull\/Merge Requests on GitHub\/Gitlab\/BitBucket",
    "manifest_version": 2,
    "icons": {
        "128": "icon128.png"
    },
    "permissions": [
        "activeTab",
        "declarativeContent",
        "storage"
    ],
    "background": {
        "scripts": [
            "background.js"
        ],
        "persistent": false
    },
    "content_scripts": [
        {
            "run_at": "document_end",
            "matches": [
                ""
            ],
            "js": [
                "contentScript.js"
            ]
        }
    ],
    "options_page": "options.html",
    "page_action": {
        "default_popup": "popup.html"
    }
}