Examine source code of Lightcord

{
  "manifest_version": 2,
  "name": "Lightcord",
  "version": "1.0.0",
  "description": "Helper extension for Lightcord",
  "author": "Snazzah",
  "icons": {
    "16": "icons/16.png",
    "24": "icons/24.png",
    "48": "icons/48.png",
    "64": "icons/64.png",
    "96": "icons/96.png",
    "128": "icons/128.png",
    "192": "icons/192.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.apps.codespaces.githubusercontent.com/*",
        "https://lightcord.js.org/*"
      ],
      "run_at": "document_end",
      "js": [
        "content.js"
      ]
    }
  ],
  "background": {
    "persistent": true,
    "scripts": [
      "background.js"
    ]
  },
  "applications": {
    "gecko": {
      "id": "lightcord@snazzah.com",
      "strict_min_version": "55.0"
    }
  },
  "minimum_chrome_version": "65.0.0",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "https://*.apps.codespaces.githubusercontent.com/*",
    "https://lightcord.js.org/*",
    "https://discord.com/api/v*",
    "https://discordapp.com/api/v*"
  ],
  "homepage_url": "https://lightcord.js.org",
  "browser_action": {
    "default_icon": {
      "16": "icons/16.png",
      "24": "icons/24.png",
      "48": "icons/48.png",
      "64": "icons/64.png",
      "96": "icons/96.png",
      "128": "icons/128.png",
      "192": "icons/192.png"
    }
  },
  "short_name": "Lightcord"
}