The OpenUI folks have been doing the angel's work of upstreaming various core components. And doing a great job. Popover & dialog are both coming along nicely.

The OpenUI folks have been doing the angel's work of upstreaming various core components. And doing a great job. Popover & dialog are both coming along nicely. https://open-ui.org/ https://open-ui.org/ For a while it was all left to appdevs to build a UI toolkit out of basic HTML but OpenUI really has been driving the standard forwards.