Sure. Here is a screenshot of Lazarus under GTK1 (using the best-looking font I could find for GTK1, Courier 10 Pitch):
http://www.urbanaustralia.org/cragwolf/gtk1laz.png
and here is a screenshot of Lazarus under GTK2 (with same font, but there are some better-looking fonts, in my opinion, like Monospace):
http://www.urbanaustralia.org/cragwolf/gtk2laz.png
The other advantage of the GTK2 version is that it is consistent with every other GTK app that I use. Firefox, gFTP, Nautilus (file manager), Pan (newsreader), Thunderbird (mail client), gnome-terminal, Acroread, the GIMP, bluefish (HTML editor), gedit (text editor), WebDownloader for X, and AbiWord (word processor) are all GTK2 apps.
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