[BUG-REGRESSION] Unable to change theme -> No module named 'tomli_w'

[thealio]

Hi I have this error using the script bash -c "$(wget -qO- https://git.io/vQgMr)"

Traceback (most recent call last):
  File "<string>", line 7, in <module>
ModuleNotFoundError: No module named 'tomli_w'

I'm currently unable to change the theme

Envirorment : XFCE Terminal : xfce4-terminal

Not currently tested with other DEs and terminals