Can I use Python scripting in KiCad to perform layer-specific operations in PCB designs?
Yes, Python scripting in KiCad can be used to perform layer-specific operations in PCB designs. The provided script snippet shows how to define references to various layers like front and back copper, as well as front and back silkscreen:

```python
import pcbnew

front_copper = pcbnew.F_Cu
back_copper = pcbnew.B_Cu
front_silk = pcbnew.F_SilkS
back_silk = pcbnew.B_SilkS
```

By referencing these layers, scripts can be tailored to handle operations like adding or modifying elements on specific layers, crucial for tasks like routing, placing components, or designing the PCB artwork.