I've had the PCB in house for some time now, and just got around to assembling and doing the first loading of software.  I didn't realize I had used a different pin for the SPI interface, so it's reverted to using a much slower bit-banged version.  This significantly slows down the screen writing.  I believe I will cut and jumper wires to put it back to the fast version.  

It took a considerable effort to figure out how to use the Arduino as an in-circuit programmer.  And then to figure out why the display wasn't working.  I guess PlatformIO include file didn't define the ports correctly.  The USB worked right off the bat though (luckily).