Tkinter Qs

[Adonis]

question 1:
what form of measurement does Tkinter use? Pixels or DIB?

question 2:
why doesnt this work? (text not being colored)

t = Text(frame, width=50, height=15)
t.pack()
t.tag_config("test", foreground="red")
t.insert(END, "test")

* have looked into Tkinter documentation and am using examples directly
as-is, textbox is bein drawna nd text is present but color not being
shown.

thanks in advance,

Adonis