Mouse animation for scroll up/down

[dimateos]

Is your feature request related to a problem? Please describe. Related to https://github.com/mulaRahul/keyviz/issues/351 about hiding scroll events. Currently they seem to be a placeholder for a better solution.

Describe the solution you'd like Similar to differentiable mouse events suggested in https://github.com/mulaRahul/keyviz/issues/272. There could be another set for scrolling up/down, like a small up/down arrow at the right of the cursor.

Could be animated or not, but follow the cursor position like the current mouse event. It would be more intuitive than the current key shaped events, placing next to the cursor gives the context that it is actually a mouse event.