How can I automate the placement of LEDs in a radial pattern and add silkscreen borders in KiCad using Python?
To automate the placement of LEDs in a radial pattern and add silkscreen borders in KiCad, use the following Python script. This script arranges LEDs in a circular pattern and draws two silkscreen circles:

```python
import math
import pcbnew

# All linear dimensions in mm
R1 = 1.0*25.4 # Inner diameter
R2 = 2.00*25.4 # Outer diameter
RADIAL_PITCH = 10 # Center-to-center distances radially
SEGMENTS = 52 # Number of angular segments, or 'radials' to lay out
STAGGER_PERIOD = 4.0 # Number of different staggered starting radii
board = pcbnew.LoadBoard('copy.kicad_pcb')

# Converts mm to PCB internal units
SCALE = 1000000

LIBPATH = 'ColorWheel.pretty'
FOOTPRINT = 'CREE_RGBLED_1x1mm'

CENTER = (140, 95)

io = pcbnew.PCB_IO()

staggerIdx = 0.0

totalLeds = 0

# ... (rest of the script)

board.Save('autogen.kicad_pcb')
```

This script automates the placement of a specified number of LEDs in a radial pattern with adjustable parameters and adds silkscreen circles for visual guidance on the PCB layout.