I was testing a npm package used to build curses-like applications and the first example had a on_mouse_over feature which runs fine on gnome-terminal, but fails on Terminology.
The npm package is: https://github.com/chjj/blessed
Here is the sample program you can use to test: https://bin.disroot.org/?1d5d3fa1fa16c16c#3cscD1/2p9R92DQ4sv37hb82cM/ibo77KBTzRgjQzM8=
Install the blessed lib dependency with the command npm install blessed before running the previous program.