I had missed html imports, but alas they're deprecated. https://developer.mozilla.org/en-US/docs/Web/Web_Components/HTML_Imports https://developer.mozilla.org/e

I had missed html imports, but alas they're deprecated. https://developer.mozilla.org/en-US/docs/Web/Web_Components/HTML_Imports https://developer.mozilla.org/en-US/docs/Web/Web_Components/... I had a similar thought though, and I think that custom components should still make it possible.