Q: How to disable shadow text for insensitive widgets?

["Kuth, Joachim Dr." <Joachim Kuth T_SYSTEM sysde eads net>]

Hi,

I have the following problem:
If I set a Button (, CheckButton, OptionMenu, ...) to insensitive,
the corresponding label will show its text with a white shadow.

How can I change this behaviour?

I already managed to change the text, change the color, but the shadow
remains.

Any ideas?

TIA,

Joachim Kuth.