Examine source code of WEB Performance Booster

{
  "manifest_version": 3,
  "name": "TITAN OMEGA MONITOR",
  "version": "3.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "F-performance-booster@performancebooster.local"
    }
  },
  "permissions": [
    "storage",
    "declarativeNetRequest"
  ],
  "host_permissions": [
    "*://*.youtube.com/*",
    "*://*.twitch.tv/*"
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "ruleset_1",
        "enabled": true,
        "path": "rules.json"
      }
    ]
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*",
        "*://*.twitch.tv/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end"
    }
  ]
}