Package Nette\Diagnostics
| DebugBar | Debug Bar. |
| DebugBlueScreen | Red BlueScreen. |
| Debugger | Debugger: displays and logs errors. |
| DebugHelpers | Rendering helpers for Debugger. |
| FireLogger | FireLogger console logger. |
| Logger | Logger. |
| IBarPanel | Custom output for Debugger. |