It prints correctly in violet on the terminal, but does not print in color on the widget

Why does the widget not print color? By incorporating.tag_config(...)

Twidg.insert(...) is thus added before mainloop().

Snippet:

# Configure a tag for colored text
Twidg.tag_config('\033[35mviolet', foreground='purple')

# Redirection of output
sys.stdout.write = redir

# Printing colored text in ScrolledText widget
Twidg.insert(INSERT, "violet\n", '\033[35mviolet')  # Insert colored text
fen.mainloop()

Screenshot:

As above, you will see color on widget.