What dialog, the examples in the article? It doesn't have any dialogs that use `command="show-modal"`, only "show-popover". Here's an example of "show-modal".

What dialog, the examples in the article? It doesn't have any dialogs that use `command="show-modal"`, only "show-popover". Here's an example of "show-modal". It also has an opacity transition. https://codepen.io/ccwilcox/pen/vEKXeER/b705840fccd607237a4edd0525bb9bd2 https://codepen.io/ccwilcox/pen/vEKXeER/b705840fccd607237a4e...