Pmw dialog - coloring of buttons

[Horst Gassner]

Hello!

I set a new default background color for all widgets (via
option_readfile()).

Now I have the problem that the buttons in a Pmw.Dialog have a different
color in the surrounding area (not the button border). I tried to set
various color options but failed.

The problem only arises on a Linux platform, in Windows this area around
the buttons has the default background color.

Thank you in advance
Horst