Website Theme Manager

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "version": "0.1.7",
  "manifest_version": 3,
  "name": "Website Theme Manager",
  "host_permissions": [
    "*://*/*"
  ],
  "homepage_url": "https://mybrowseraddon.com/website-theme-manager.html",
  "description": "Change your desired website's look! Choose your style from userstyles.org or write your own!",
  "commands": {
    "_execute_action": {}
  },
  "background": {
    "service_worker": "background.js"
  },
  "permissions": [
    "storage",
    "unlimitedStorage"
  ],
  "options_ui": {
    "open_in_tab": true,
    "page": "data/options/options.html"
  },
  "web_accessible_resources": [
    {
      "matches": [
        "*://*/*"
      ],
      "resources": [
        "data/content_script/icons/saved.png",
        "data/content_script/icons/loading.gif"
      ]
    }
  ],
  "action": {
    "default_title": "Website Theme Manager",
    "default_icon": {
      "16": "data/icons/16.png",
      "32": "data/icons/32.png",
      "48": "data/icons/48.png",
      "64": "data/icons/64.png"
    }
  },
  "content_scripts": [
    {
      "all_frames": true,
      "matches": [
        "*://*/*"
      ],
      "run_at": "document_start",
      "js": [
        "data/content_script/inject.js"
      ]
    },
    {
      "run_at": "document_start",
      "matches": [
        "*://*.userstyles.org/*"
      ],
      "js": [
        "data/content_script/userstyles.js"
      ],
      "css": [
        "data/content_script/userstyles.css"
      ]
    }
  ],
  "icons": {
    "16": "data/icons/16.png",
    "32": "data/icons/32.png",
    "48": "data/icons/48.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png"
  }
}