Examine source code of BewlyBewly

{
  "manifest_version": 3,
  "name": "BewlyBewly",
  "version": "0.41.1",
  "description": "Just make a few small changes to your Bilibili homepage.",
  "homepage_url": "https://github.com/hakadao/BewlyBewly",
  "background": {
    "scripts": [
      "./dist/background/index.js"
    ]
  },
  "icons": {
    "16": "./assets/icon-512.png",
    "48": "./assets/icon-512.png",
    "128": "./assets/icon-512.png"
  },
  "permissions": [
    "storage",
    "declarativeNetRequest",
    "tabs",
    "webRequest",
    "webRequestBlocking",
    "cookies"
  ],
  "host_permissions": [
    "*://*.bilibili.com/*",
    "*://*.hdslb.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://www.bilibili.com/*",
        "*://search.bilibili.com/*",
        "*://t.bilibili.com/*",
        "*://space.bilibili.com/*",
        "*://message.bilibili.com/*",
        "*://member.bilibili.com/*",
        "*://account.bilibili.com/*",
        "*://www.hdslb.com/*",
        "*://passport.bilibili.com/*",
        "*://music.bilibili.com/*"
      ],
      "js": [
        "./dist/contentScripts/index.global.js"
      ],
      "css": [
        "./dist/contentScripts/style.css"
      ],
      "run_at": "document_start",
      "match_about_blank": true,
      "all_frames": true
    },
    {
      "matches": [
        "*://www.bilibili.com/*",
        "*://search.bilibili.com/*",
        "*://t.bilibili.com/*",
        "*://space.bilibili.com/*",
        "*://message.bilibili.com/*",
        "*://member.bilibili.com/*",
        "*://account.bilibili.com/*",
        "*://www.hdslb.com/*",
        "*://passport.bilibili.com/*",
        "*://music.bilibili.com/*"
      ],
      "js": [
        "./dist/inject/index.js"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "world": "MAIN"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "dist/contentScripts/style.css",
        "assets/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "addon@bewlybewly.com"
    }
  }
}