user interface - Old Linux gui framework? -


some old linux programs seems use different gui framework gtk or qt, it?

like old netscape linux:

http://www.gis.usu.edu/unix/howtos/netscape6.gif http://www.gis.usu.edu/unix/howtos/netscape6.gif

or project manager (objective c ide)

http://home.gna.org/pmanager/screenshots/0.2/filemanagermodule.png http://home.gna.org/pmanager/screenshots/0.2/filemanagermodule.png

and possible theme it?


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