Examine source code of Melvor Speed

{
  "manifest_version": 2,
  "name": "Melvor Speed",
  "version": "1.0.1",
  "description": "Speed-running extension for Melvor Idle",
  "icons": {
    "96": "icon_96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://melvoridle.com/*",
        "*://www.melvoridle.com/*",
        "*://test.melvoridle.com/*"
      ],
      "js": [
        "main.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "melvor-speed.js",
    "melvor-speed-settings.js"
  ]
}