Latest additions in
https://github.com/kirill-grouchnikov/aurora - popup enhancements. Combobox popups can be configured with max visible rows, at which point vertical scrolling kicks in. And the regular popups can now host scrollable panels. See the attached video that shows a vertically scrollable grid of buttons in a popup menu. Each button has action preview and action - action preview can be used for previewing the action result without making it permanent - see the rollover effect on changing the canvas gradient as the mouse is moved over that popup grid.