Examine source code of PoE Trade Extension

{
  "manifest_version": 2,
  "name": "PoE Trade Extension",
  "description": "An extension which provides safer and easier trading in Path of Exile",
  "version": "3.0.60",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "permissions": [
    "sidePanel",
    "storage",
    "tabs",
    "notifications",
    "https://poe.ninja/*",
    "https://raw.githubusercontent.com/The-Forbidden-Trove/*",
    "https://forbiddentrove.com/*"
  ],
  "web_accessible_resources": [
    "multiLiveSearchInjected.js",
    "*.png",
    "content-scripts/trade.css"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Default Popup Title",
    "default_popup": "popup.html"
  },
  "sidebar_action": {
    "default_panel": "sidepanel.html",
    "default_title": "PoE Trade Extension",
    "open_at_install": false
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.pathofexile.com/account/view-profile/*",
        "https://poe.game.daum.net/account/view-profile/*",
        "https://poe.game.qq.com/account/view-profile/*",
        "https://www.pathofexile.com/account/view-profile/*"
      ],
      "js": [
        "content-scripts/account.js"
      ]
    },
    {
      "matches": [
        "https://*.pathofexile.com/guild/*",
        "https://*.pathofexile.com/my-guild/*",
        "https://poe.game.daum.net/guild/*",
        "https://poe.game.daum.net/my-guild/*",
        "https://poe.game.qq.com/guild/*",
        "https://poe.game.qq.com/my-guild/*",
        "https://www.pathofexile.com/guild/*",
        "https://www.pathofexile.com/my-guild/*"
      ],
      "js": [
        "content-scripts/guild.js"
      ]
    },
    {
      "matches": [
        "https://*.pathofexile.com/trade*",
        "https://pathofexile2.kakaogames.com/trade*",
        "https://poe.game.daum.net/trade*",
        "https://poe.game.qq.com/trade*",
        "https://poe.kakaogames.com/trade*",
        "https://www.pathofexile.com/trade*"
      ],
      "run_at": "document_idle",
      "js": [
        "content-scripts/multiLiveSearch.js",
        "content-scripts/trade.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{3df9c1b1-fddd-4c8f-9b79-13d23f33aa48}"
    }
  }
}