No, you are not going crazy, or losing your eyesight. The entry titles are now “invisible”. Strictly speaking, I’ve just changed their color to match the background color (in this case, white). I did this as an extension to the changes I made before, in an effort to further minimize remove altogether the visual distraction that having a title brings. And if you still like to read the entry titles, you still can by hovering your mouse pointer over the place where the title should be. This adds an element of discovery to the site, which is always fun.
I’ve also lightened the sidebar section titles and the “Posted in” text. But I bet none of you would have noticed.
