Examine source code of K+ Reposter

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "K+ Reposter",
  "description": "Easily repost your Kijiji ads",
  "version": "6.0.16",
  "icons": {
    "128": "icon/128.png"
  },
  "permissions": [
    "sidePanel",
    "storage",
    "alarms",
    "tabs",
    "cookies"
  ],
  "host_permissions": [
    "https://kijiji.ca/",
    "https://www.kijiji.ca/"
  ],
  "content_scripts": [
    {
      "js": [
        "ExtPay.js"
      ],
      "matches": [
        "https://extensionpay.com/*"
      ],
      "run_at": "document_start"
    },
    {
      "js": [
        "disable-eval.js"
      ],
      "matches": [
        "https://www.kijiji.ca/*"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*.kijiji.ca/m-my-ads*"
      ],
      "css": [
        "content-scripts/ads-page.css"
      ],
      "js": [
        "content-scripts/ads-page.js"
      ]
    },
    {
      "matches": [
        "*://*.kijiji.ca/*"
      ],
      "run_at": "document_idle",
      "js": [
        "content-scripts/repost-similar.js"
      ]
    },
    {
      "matches": [
        "*://*.kijiji.ca/p-edit-ad.html?adId=*"
      ],
      "run_at": "document_end",
      "js": [
        "content-scripts/repost.js"
      ]
    },
    {
      "matches": [
        "*://*.kijiji.ca/t-my-orders*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/return-ads.js"
      ]
    }
  ],
  "background": {
    "service_worker": "background.js"
  },
  "action": {
    "default_title": "Kijiji Reposter",
    "default_popup": "popup.html"
  },
  "side_panel": {
    "default_path": "sidepanel.html"
  }
}