Examine source code of GitHub to Discord Sender

{
  "manifest_version": 2,
  "name": "GitHub to Discord Sender",
  "version": "1.7",
  "author": "Alex Weatherbie",
  "description": "Send selected GitHub repo files to a custom Discord webhook.",
  "permissions": [
    "storage",
    "https://discord.com/*",
    "https://discordapp.com/*",
    "https://github.com/*",
    "https://raw.githubusercontent.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://github.com/*/*/tree/*",
        "https://github.com/*/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png"
    },
    "default_title": "GitHub to Discord Sender",
    "default_popup": "options.html"
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png",
    "256": "icons/icon-256.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f523457d-d249-4519-bc1a-8cc4f1ace2e7}"
    }
  }
}