Hmm, weird, now my test install is working right, i.e., I get the split colored titles and the pages/posts draw correctly. I wonder if it's because I switched DNS providers.
I just installed the
Fruitful theme, and one interesting thing it has is a wider Customizer sidebar than usual, looks like it sets the width to 400px. Plus, the sidebar is fixed so it floats over the preview pane, and it becomes transparent when not hovered over so you can see the entire preview page. I'd like to at least see a wider width on Montezuma's Customizer sidebar so the template & CSS fields are easier to read. Maybe the width can be set to 80% or 90% in admin.css? If not, I can add my own CSS using Chrome's User CSS extension.