Examine source code of xLog custom css debugger

{
  "manifest_version": 3,
  "name": "xLog custom css debugger",
  "version": "0.3.0",
  "description": "A convenient web extension for debugging custom css in xLog.",
  "action": {
    "default_icon": "./assets/icon-512.png"
  },
  "background": {
    "scripts": [
      "dist/background/index.mjs"
    ],
    "type": "module"
  },
  "icons": {
    "16": "./assets/icon-16.png",
    "48": "./assets/icon-48.png",
    "128": "./assets/icon-512.png"
  },
  "permissions": [
    "contextMenus"
  ],
  "host_permissions": [
    "*://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "dist/contentScripts/index.global.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "dist/contentScripts/style.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    },
    {
      "resources": [
        "monaco-editor/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "xlogcustomcssdebugger@birdgg.me"
    }
  }
}