Skins and Themes in GTK

[Dpetrini genius org br]

Hello,

This is my very first message in this list.
I was asked to manage great changes in some applications written in GTK,
using Linux.

The point is that I have to change an application to have a new and
different skin, or theme if you prefer.
So that I have to make substancial modifications in the code and I wonder
the definitions of the primitives of  GTK.
I looked the GTK sources and found the definifinitions of widget and gtk
windget. They sounded little confusing and I´m
looking for some documentation because I felt a lack of them in GTK.org
site.
Has anybody a suggestion on sources of docs ore good books in GTK at these
low level of the library?

Thank you in advance.



Daniel Petrini
Genius INstitute of Technology
Manaus - AM
Brasil
Tel. +55 92 614 6570
Cel. +55 92 9123 8532