I would like to define my own touch interface:

So far I only found the M5Btn class, but I can not use it to define transparent touch tiles.

from m5stack import *
from m5stack_ui import *
from uiflow import *

screen = M5Screen()
screen.clean_screen()
screen.set_screen_bg_color(0xFFFFFF)

touch_button0 = M5Btn(text=None, x=0, y=0, w=100, h=80, bg_c=None, text_c=None, font=None, parent=None)

def touch_button0_pressed():
  # global params
  pass
touch_button0.pressed(touch_button0_pressed)

I tried to overwrite the button with my touch tiles, but after press the button is shown.

lcd.fillRect(   0,   0, 100, 80, 0xff0000 )
lcd.fillRect( 100,   0, 120, 80, 0x00ff00 )
lcd.fillRect( 220,   0, 100, 80, 0x0000ff )    
lcd.fillRect(   0,  80, 100, 80, 0xaa0000 )
lcd.fillRect( 100,  80, 120, 80, 0x00aa00 )
lcd.fillRect( 220,  80, 100, 80, 0x0000aa )    
lcd.fillRect(   0, 160, 100, 80, 0x550000 )
lcd.fillRect( 100, 160, 120, 80, 0x005500 )
lcd.fillRect( 220, 160, 100, 80, 0x000055 )    

Or do I need to do this manually in a loop?

import time
from m5stack import *


def tile(x,y):
    qx = 0
    qy = 0

    if x>=0 and x<100: qx = 1
    if x>=100 and x<220: qx = 2
    if x>=220 and x<320: qx = 3
    
    if y>=0 and y<80: qy = 0
    if y>=80 and y<160: qy = 3
    if y>=160 and y<240: qy = 6

    return qx + qy


def action(q):
    if q == 0: lcd.clear(0xFFFFFF)
    if q == 1: lcd.fillRect(   0,   0, 100, 80, 0xff0000 )
    if q == 2: lcd.fillRect( 100,   0, 120, 80, 0x00ff00 )
    if q == 3: lcd.fillRect( 220,   0, 100, 80, 0x0000ff )    
    if q == 4: lcd.fillRect(   0,  80, 100, 80, 0xaa0000 )
    if q == 5: lcd.fillRect( 100,  80, 120, 80, 0x00aa00 )
    if q == 6: lcd.fillRect( 220,  80, 100, 80, 0x0000aa )    
    if q == 7: lcd.fillRect(   0, 160, 100, 80, 0x550000 )
    if q == 8: lcd.fillRect( 100, 160, 120, 80, 0x005500 )
    if q == 9: lcd.fillRect( 220, 160, 100, 80, 0x000055 )    


def loop():
    x = -1
    y = -1
    while True:
        if touch.status() == True:
            t = touch.read()
            tx = t[0]
            ty = t[1]
            if x != tx and y != ty:
                x = tx
                y = ty
                q = tile(x, y)
                action(q);
        else:
            x = -1
            y = -1
            action(0)

        time.sleep(0.05)


loop()