[anthk]

For a FVWM/Motif based theme, you may like the OL/Motif themes from B00merang.

OpenLook https://b00merang.weebly.com/solaris-8.html

Motif https://b00merang.weebly.com/solaris-9.html

The Solaris 9 theme works great with FVWM.