Minimize the Plexi Project on a Pro Trinket

I want to make my Plexi Controller as small as possible. This Arduino project controls the intensity of the LEDs for artworks that are framed with a backlit plexiglass. So I wired a new version of the schematics around an Adafruit Pro Trinket. It’s a lot smaller and has almost all the capabilities of a full scale Arduino Uno.
Here’s the result.