Hi all!
I have been experimenting with embedding terminal-based widgets like tty-clock / bpytop into my FVWM panel using the Swallow function. 
While embedding works, I’ve noticed that transparency breaks the embedded terminals show with a solid background; ignoring any compositor effects or transparency settings I’ve configured through picom. 
Interestingly, standalone terminal windows respect transparency just fine; so it seems like something changes in the environment when the window is swallowed. I’ve tried launching with different terminal emulators (URxvt, Alacritty, Kitty), but the result is the same once embedded. Checked FvwmButtons manual page UiPath Training guide related to this and found it quite informative.
Is there a known workaround for preserving transparency in swallowed terminal apps within FVWM? 
Would wrapping the command or launching it via a script help retain compositor hints? Open to suggestions or examples from anyone who’s managed this successfully.
Thank you !!