Title object in M5UI module got a wrong background color

[RuofengX]

In micropython, UIflow 1.4.5.1
using codes below will cause the backgound color disappearing:
main.txt

[RuofengX]

Using
title0 = M5Title(title="Title", x=3 , fgcolor=0xFFFFFF, bgcolor=0x0000FF)
to change title content is still working, but that may cause performance issue.