Examine source code of Tweaks for Freelancer.com

{
  "description": "Unbreaking some things for freelancer.com",
  "manifest_version": 2,
  "name": "Tweaks for Freelancer.com",
  "version": "0.2",
  "homepage_url": "https://gitlab.com/losnappas/tweaks-for-freelancer.com",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.freelancer.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "permissions": [
    "*://*.freelancer.com/*",
    "webRequest",
    "webRequestBlocking"
  ],
  "applications": {
    "gecko": {
      "id": "tweaks-for-freelancer.com@losnappas"
    }
  }
}