Examine source code of Jobs Filter

{
  "name": "Jobs Filter",
  "version": "1.0.5",
  "description": "A little helper to remove junk jobs from the feed",
  "homepage_url": "https://sdex.dev/",
  "author": "Yuriy Mysochenko",
  "manifest_version": 2,
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_title": "Jobs Filter",
    "default_popup": "src/popup/popup.html",
    "default_icon": {
      "16": "assets/icon.16.png",
      "48": "assets/icon.48.png",
      "128": "assets/icon.128.png"
    }
  },
  "content_scripts": [
    {
      "run_at": "document_end",
      "matches": [
        "https://www.upwork.com/*/jobs/search/*",
        "https://www.upwork.com/*/find-work/*"
      ],
      "js": [
        "src/content/main.js"
      ]
    }
  ],
  "options_ui": {
    "page": "src/options/options.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "assets/icon.16.png",
    "48": "assets/icon.48.png",
    "128": "assets/icon.128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "jobsfilter@sdex.dev"
    },
    "gecko_android": {}
  }
}