Examine source code of FL Small Mercies

{
  "name": "FL Small Mercies",
  "description": "Set of small 'fixes' for Fallen London UI.",
  "version": "3.3.7",
  "manifest_version": 3,
  "permissions": [
    "storage",
    "tabs"
  ],
  "background": {
    "service_worker": "dist/background-bundle.js",
    "type": "module",
    "scripts": [
      "dist/background-bundle.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.fallenlondon.com/*"
      ],
      "js": [
        "dist/early_sniffer.js"
      ],
      "run_at": "document_start",
      "world": "MAIN"
    },
    {
      "matches": [
        "https://www.fallenlondon.com/*"
      ],
      "css": [
        "dist/css/extension.css"
      ],
      "js": [
        "dist/content-bundle.js"
      ],
      "run_at": "document_start"
    }
  ],
  "action": {
    "default_icon": {
      "16": "/images/fl-small-mercies-icon-16.png",
      "32": "/images/fl-small-mercies-icon-32.png",
      "48": "/images/fl-small-mercies-icon-48.png",
      "128": "/images/fl-small-mercies-icon-128.png"
    }
  },
  "icons": {
    "16": "/images/fl-small-mercies-icon-16.png",
    "32": "/images/fl-small-mercies-icon-32.png",
    "48": "/images/fl-small-mercies-icon-48.png",
    "128": "/images/fl-small-mercies-icon-128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "dist/*",
        "src/*"
      ],
      "matches": [
        "https://www.fallenlondon.com/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{fc58eef1-6594-4fd2-81f3-67785bb234da}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}