1955 Chevy Tail Light Night Light Bel Air

Saw this old 55 Chevy taillight on the ebay, thought it would make a cool conversion project. Wrote/modified a fade-to-black code for 16 segment neopixel ring (fades 250x250, dark red to white, max brightness about 150) using arduino IDE and loaded to an Adafruit Trinket. Second led is white for reverse light with resistor to dim it a bit. https://www.adafruit.com/product/1463

A momentary push-button for 'on' triggers power via a 555 looping timer circuit . Timing circuit uses a 2200 uF ca