One usability detail you might consider:
I like how you follow HN's lead and make read content headlines a lighter gray. But there's no corresponding effect for the screenshot slides. That definitely reduces the usefulness of the read state.
I like how you follow HN's lead and make read content headlines a lighter gray. But there's no corresponding effect for the screenshot slides. That definitely reduces the usefulness of the read state.
EDIT: Correction, not "have", rather "support"
On some sites, I've used it as a subtle hover state for image links, so they "pop" a little. (Set the default opacity to 92% and have it go to 100% on hover.)