Highlight multiple keywords in a web page

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "Highlight multiple keywords in a web page",
    "description": "Highlight multiple words in a web page to see immediately if the page contains any relevant information",
    "version": "0.0.12",
    "icons": {
        "128": "images\/off.png"
    },
    "background": {
        "service_worker": "sw\/sw.js",
        "type": "module"
    },
    "action": {
        "default_title": "Enable highlighting"
    },
    "permissions": [
        "scripting",
        "activeTab",
        "storage"
    ],
    "web_accessible_resources": [
        {
            "resources": [
                "content\/*",
                "shared\/*"
            ],
            "matches": [
                "<all_urls>"
            ]
        }
    ],
    "optional_permissions": [
        "webNavigation"
    ],
    "optional_host_permissions": [
        "https:\/\/*\/*"
    ],
    "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAh0MNEhzj1xszXglEnYHqz+JJ9XH7YG5mtSY0ZfNd\/OmuxJ3qWcXp32EwBRBc8Gd6NSXJ2RV55cPp8O4XlpI+j7+FuQBTgLESrpHGm4f86mfL+JzxoudKVCf5U\/RBbMpX3l0du0nOZCXS9QlLYhuJBoYIZ1iJsNrnX80bJ5VeOPSe0HyF6vg1ti85dTQh3vt1Ol3oFGzkTArXV\/yFX9r6L05O6SGlHnFFKBAu3XEtolmF1oyw9HuMFl\/sfx4S9E2TsH6\/iYH\/XswyZNPBiOlLEp4y8TSnccoEJKrUCmin7lVH735mr2mFdxBiIGxgYgJlxbEClZYfJpepfHSA0I2MZQIDAQAB",
    "options_page": "options\/options.html"
}