Minimize xterm windows in place

Xterm windows minimize to a live terminal display, they tend to be shaped differently from other application icons. I would like to separate Xterm icons from where other application icons align. Is there a way to configure just Xterm windows to minimize relative to the center of their window geometry? Or perhaps a separate icon grid for Xterm icons?

The IconBox, IconFill, and IconGrid options for where Icons are placed and how they fill are Styles. You can apply Styles to different windows just like you would any style, using Style xterm styles. Check the manpage for more info on those styles.