I are not the author of these themes but i have just revised the "Ater-ice-theme-pack " of the author BlueScorpio_7 (Solisx7):
https://www.opendesktop.org/p/1018108/

I added just gtk2 themes SlicknessS :

https://www.opendesktop.org/p/1080130/
https://www.opendesktop.org/p/1080227/
https://www.opendesktop.org/p/1079240/
https://www.opendesktop.org/p/1078582/

You extract archive and extract gtk2 SlicknesS themes in HOME/.themes.

1. SlicknesS-Ater-ice + Slickness_Green
2. SlicknesS-Ater-ice-black + SlicknesS-black
3. SlicknesS-Ater-ice-blue + SlicknesS-blue
4. SlicknesS-Ater-ice-hybrid + SlicknesS

Thank you to authors of these icewm and gtk2 themes !
Enjoy :-)
Bye
Francesco bat