Ciallo
Overview
Ciallo (pronounced "chow-lo") a vector paint program currently in development.
This is currently very actively in development. So it's not ready yet for a general audience. But it is a an interesting look at the future.
My experience
I did try the development version on Steam in July 2026. So keep in mind I only exercised some features and did not have a long drawing session. Some quick things I noticed:
Very fast and responsive.
If you didn't know it was a vector app, you might not realize it from casual use. This is a compliment!
I was very happy with its vector erasing capabilities
The eraser produces good results compared to Clip Studio Paint's vector eraser which I am very used to.
The eraser shows a live preview of what it is going to erase before it does. This allows you to cancel a stroke before committing to it. I've never seen such a feature before in painting app.
Features I did not try (yet):
Vector bucket fill
Exploring the brush engine
Resources
ACM SIGGRRAPH - Ciallo: The next-generation vector paint program - August 2023-08-07
Research paper: https://github.com/ShenCiao/Ciallo/tree/main/paper
GitHub page: https://github.com/ShenCiao/Ciallo
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