| Name | Description |
|---|---|
| Check | |
| Source_grey | A boundary for power connections |
| Sink_grey | A boundary for power connections |
| Source_blue | Blue boundary |
| Sink_blue | Blue sink |
| Source_green | Green source |
| Sink_green | Green boundary |
| Source_red | Red boundary |
| Sink_red | Red boundary |
| Source_yellow | Yellow boundary |
| Sink_yellow | Yellow boundary |
| Source_brown | |
| Sink_brown | |
| Source_purple | |
| Source_orange | |
| Source_black | |
| Dispatcher | Ideal fuel dispatcher |
| Sink_orange | |
| SinkGas_green |