Examine source code of Rally for Onshape

{
  "manifest_version": 3,
  "name": "Rally for Onshape",
  "version": "1.2.27",
  "description": "Make Onshape faster, cleaner, and easier to use.",
  "homepage_url": "https://github.com/RileyDavidson-Evans/onshape-plus",
  "icons": {
    "16": "icons/onshape-plus-main-logo-128.png",
    "32": "icons/onshape-plus-main-logo-128.png",
    "48": "icons/onshape-plus-main-logo-128.png",
    "128": "icons/onshape-plus-main-logo-128.png"
  },
  "action": {
    "default_title": "Rally for Onshape",
    "default_icon": {
      "16": "icons/onshape-plus-main-logo-128.png",
      "32": "icons/onshape-plus-main-logo-128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://cad.onshape.com/*"
      ],
      "js": [
        "assets/main.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "commands": {
    "reload-extension": {
      "suggested_key": {
        "default": "Ctrl+Shift+R",
        "mac": "Command+Shift+R"
      },
      "description": "Reload extension"
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "onshape-page-bridge.js"
      ],
      "matches": [
        "https://cad.onshape.com/*"
      ]
    }
  ],
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "onshape-plus@rileydavidson.dev",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}