Given how many look&feel trends we've seen over the last few decades it would even look kinda cool&trendy in a postmodern-ish kinda way!

Motif Window Manager (mwm) is very like twm but with nice regular sized colour icons and Alt-Tab already defined in the system .mwmrc.

Very Windows 3 with iconised windows on the desktop.

https://en.wikipedia.org/wiki/Motif_Window_Manager