vsc-material-theme/.vscode/launch.json

// A launch configuration that launches the extension inside a new window
{
  "version": "0.1.0",
  "configurations": [{
    "name": "Launch Extension",
    "type": "extensionHost",
    "request": "launch",
    "runtimeExecutable": "${execPath}",
    "args": ["--extensionDevelopmentPath=${workspaceRoot}"],
    "preLaunchTask": "build"
  }]
}