A student asked about the blog icon I mention in the StartUpExercises:
On the checklist it said to add a blog icon, but I can’t seem to figure out what that is. What exactly should I be looking for?
I dug around and found that WP has changed the term. It’s now called a site icon. See this page on WordPress Support: five step blog setup. It’s a small square icon that appears in the browser address bar.
It’s not necessary to have a site icon, but it helps visitors distinguish your blog from others in their bookmarks and elsewhere.