The comment for clear() is somewhat confusing, but implies that this method can accept a 565 encoded color. This doesn't work as expected because if a 16 bit colour is passed in, only the lower 8 bits will be used, giving unexpected results. Instead, to clear the display to a particular colour, this method requires an 8-bit colour value in the format RRRBBGGG.

Demonstration:

import wt32sc01py as wt32
import time
tft = wt32.WT32SC01(0)
tft.clear(wt32.RED)  # expected red, got black
time.sleep(3)
tft.clear(0b11100000)  # got red
time.sleep(3)
tft.clear(wt32.GREEN) # expected green, got red 
time.sleep(3)
tft.clear(0b00000111)  # got green
time.sleep(3)
tft.clear(wt32.BLUE)  # expected blue, got cyan
time.sleep(3)
tft.clear(0b00011000)  # got blue
time.sleep(3)

WT32SC01 Plus
MicroPython v1.20.0 on 2023-04-26; ESP32S3 module (spiram) with ESP32S3

russhughes/wt32sc01py (Download 2023-Sep-15)
With hello.py or chango.py or lines.py... with Thonny 4.1.1 on Mac Book with Intel CPU I get the error

Traceback (most recent call last):
File "", line 35, in
File "", line 21, in main
File "wt32sc01py.py", line 636, in clear
NameError: name 'rmt' isn't defined

But in wt32sc01py.py:

from esp32 import RMT
...
def init(self,rotation=0,rotations=ROTATIONS,):
...
self.rmt = RMT(0, pin=self.wr, clock_div=1) <<< Line 338
...
def clear(self, color=None):
...
for _ in range(count * 2):
rmt.write_pulses(2, pulses) <<<Line 636
rmt.wait_done()
...

All looks good, what's wrong ???