Using solid core wire:

• Neopixel PWR -> Trinket JST + pad (on the back)
• Neopixel GND -> Trinket GND
• Neopixel IN -> Trinket 9

NOTE: do not use the 3V pin on the far end of the Pro Trinket (the one next to your GND connection).  This pin is for input from an FTDI cable, not output, and your lights won't come on.

Using Backpack Charger's included header pins:

• Backpack BAT -> Trinket BAT
• Backpack G -> Trinket G
• Backpack 5v -> Trinket BUS

Using 26g silicone stranded wire:

• Two Backpack switch pins to magnetic clasp