This is one of those questions where I'm sure the answers would be easy to find if I only knew the right keywords . . .

I've just replaced my old Knoppix 3.2 hdd install with the Knoppix 3.3 of February 16, 2004. Installation and configuration have been smooth, with one exception -- I can't figure out how to abandon some new X "look and feel" settings that I dislike. I'm pretty sure they're X settings because I can alter themes, icon sets, etc. in both KDE and iceWM without fixing what bugs me, which is that selection buttons on toolbars and the toolbars themselves are rounded, puffy, and pillowlike (as if making them look thick and soft will make it more comfortable to select them?).

I think it makes them harder to see. Here's a couple of screenshots of what I'm talking about.

What configuration option(s) should I explore to make these "widgets" (right word?) look plainer? Thanks for any help!