I just got FastLED working on a homebrew board using attiny167. There were a few problems:
- I got compile errors (undefined reference to ‘timer0_millis’) which I “solved” with NO_CORRECTION 1
- The pin definitions for attiny167 didn’t match the Digispark Pro pinout. Not sure what they are based on but I had to change them since I use the digispark pro stack (micronucleus bootloader and digispark libraries in arduino IDE).