GTK+3.0 application does not show some existing icons

[Matthias Apitz]

Hello,

I have a problem with some GTK+3 application not showing some existing
icons of the gnome-icon-theme. To nail it down, I went to some GTK tutorial
pages and hacked together a simple application (attached) which can be
compiled with just:

$ gcc -g image.c `pkg-config --cflags --libs gtk+-3.0` -o image

and shows the first argument as icon name, for example:

$ ./image document-print-preview

which works fine, while other icons do not work, for example

$ ./image bottom

Could some kind soul bring a bit light into the relation between an icon
name and the corresponding PNG file name.png? Because, even in the case when
the icon is shown, one does no see any open of the PNG file with
truss(1). How this is done? And why some of the icons are woring while
others do not?

If it does matter, it is a system with a fresh ports tree from April,
1st, SVN revision r315646.

Thanks

	matthias
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