Thanks for clearing up the teensylc branch. I’ll make sure only to use it for ESP32 then. And no big deal with the red background issue, I was just checking the differences between the two. All in all ESP32 worked pretty well, even with direct wiring which you haven’t used in a while.
Given that it’s unlikely that I’ll get neopixel strips working with teensy ( SmartMatrix + FastLED Neopixels + Interrupt driven IR - #2 by marcmerlin) this is good news. I’ll try and do more work with ESP32 since it seems to work well enough.
Joyeux Noël, Marc