Examine source code of Letterboxd Text Formatter

{
  "manifest_version": 2,
  "name": "Letterboxd Text Formatter",
  "version": "0.5.0",
  "description": "A simple interface for formatting Letterboxd reviews, comments, and more.",
  "icons": {
    "16": "images/icon-16.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "letterboxd-text-formatter@sam"
    }
  },
  "permissions": [
    "storage"
  ],
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": false
  },
  "content_scripts": [
    {
      "js": [
        "libs/purify.min.js",
        "scripts/formatting.js"
      ],
      "matches": [
        "https://*.letterboxd.com/*film/*",
        "https://*.letterboxd.com/*/films/diary/",
        "https://*.letterboxd.com/settings/",
        "https://*.letterboxd.com/*/list/*"
      ]
    },
    {
      "js": [
        "scripts/modal-content.js",
        "scripts/comment-content.js"
      ],
      "css": [
        "modal.css"
      ],
      "matches": [
        "https://*.letterboxd.com/*film/*",
        "https://*.letterboxd.com/*/films/diary/",
        "https://*.letterboxd.com/*/list/*"
      ]
    },
    {
      "js": [
        "scripts/settings-content.js"
      ],
      "matches": [
        "https://*.letterboxd.com/settings/"
      ]
    },
    {
      "js": [
        "scripts/list-content.js"
      ],
      "matches": [
        "https://*.letterboxd.com/*/list/*/edit/"
      ]
    }
  ]
}