Examine source code of LiveDebugger DevTools

{
  "manifest_version": 3,
  "name": "LiveDebugger DevTools",
  "version": "0.1.1",
  "description": "Extension which allows running LiveDebugger inside DevTools",
  "author": "SWM",
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "devtools_page": "./devtools.html",
  "browser_specific_settings": {
    "gecko": {
      "id": "@live-debugger-addon-swm",
      "strict_min_version": "58.0"
    }
  }
}