Examine source code of AO3 Rich Comment Editor

{
  "manifest_version": 3,
  "name": "AO3 Rich Comment Editor",
  "short_name": "AO3 Comment Editor",
  "version": "1.0.2",
  "description": "Format AO3 comments with bold, italic, links, lists, and more. Adds the same Rich/Plain(HTML) editor toggle that authors get, now for every commenter.",
  "author": "ninineen",
  "homepage_url": "https://github.com/ninineen/AO3-Rich-Comment-Editor",
  "permissions": [],
  "host_permissions": [
    "https://archiveofourown.org/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://archiveofourown.org/*"
      ],
      "js": [
        "vendor/squire.js",
        "content/sanitizer.js",
        "content/content.js"
      ],
      "css": [
        "content/content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "icons": {
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "ao3-rich-comment-editor@ninineen",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}