Examine source code of ani2arr

{
  "manifest_version": 2,
  "name": "ani2arr",
  "description": "Adds one-click Sonarr, Radarr, and Seerr actions to AniList and AniChart pages",
  "version": "2.1.0",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "permissions": [
    "storage",
    "alarms",
    "https://anilist.co/*",
    "https://www.anilist.co/*",
    "https://graphql.anilist.co/*",
    "https://anichart.net/*",
    "https://www.anichart.net/*",
    "https://github.com/anibridge/anibridge-mappings/releases/download/v3/mappings.min.json",
    "https://release-assets.githubusercontent.com/*"
  ],
  "optional_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "options_ui": {
    "open_in_tab": true,
    "browser_style": false,
    "page": "options.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "infectiousstupidity@proton.me",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "websiteContent"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "ani2arr Quick Settings",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://anichart.net/*",
        "https://www.anichart.net/*"
      ],
      "js": [
        "content-scripts/anichart-browse.js"
      ]
    },
    {
      "matches": [
        "https://anilist.co/*"
      ],
      "run_at": "document_end",
      "js": [
        "content-scripts/anilist-anime.js"
      ]
    },
    {
      "matches": [
        "https://anilist.co/*"
      ],
      "js": [
        "content-scripts/anilist-browse.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "content-scripts/anichart-browse.css",
    "content-scripts/anilist-anime.css",
    "content-scripts/anilist-browse.css"
  ]
}