Hi,
we've added mouse support to johnnovak/illwill.
It should run on linux, windows and macos.
The changes still live in my illwill fork, though.
We've also created a small illwill widget library. At the moment it has:
We've tried to still give you this "immediate mode" feeling.
Please try and report if its working for you (or not :) ). If it works well, i'll create a pull request to merge upstream.