How to use 1.3" SPI Colour LCD (240x240) Breakout with Arduino

I’m running what was posted here, on the 1.54 240 by 240 LCD breakout.
Need Help: Pico weather station guide using the Pico Explorer - Discussion / Learning Resources - Pimoroni Buccaneers
I can swap in the 1.3 240 by 240 LCD breakout and run the same code without any edits.
Just a FYI post.
Tony @Tonygo2 is, IMHO, the display guru around here.
Hel @hel is the one who came up with that code though.