some attributes don't appear in the HTML pane

The contenteditable attribute is not shown in the HTML pane but the exported HTML is fine. (btw, I saved it as a shared component called neon)

enter image description here

Thanks for the screenshot! This is on purpose - contenteditable is not added in the app itself, so that it doesn't break our drag and drop editing. But it is added in the browser preview and when exporting.

Makes sense. Thanks Martin!