Not quite willing to dig out my Sparcstation 5 and find the mouse and matching metal mousepad...
Was more hopeful that someone had created a new implementation of that environment.
Let's turn this around --- for vector-graphic oriented development work what current environment would you recommend trying?
Here are some links I've found:
Unix & Linux: How to emulate the NeWS window system?
https://www.youtube.com/watch?v=9ZhZqfC8sC4
Sun OpenWindows 3.0 (NeWS!)
https://www.youtube.com/watch?v=Kl08TvO0Bgw
Looks like this is running on a real Sun workstation, not an emulator. He shows RasterRap and The NeWS Toolkit demos, but not PizzaTool.
Good luck! Let me know if you get something working.