I am self hosting ghost on a digital ocean droplet. I changed my theme from default casper to source but the website continues to render with the casper theme. I have restarted ghost but that didn’t make any difference either. I am attaching a few screenshots that maybe helpful for additional information. Please let me know if I can provide any additional information.
That screenshot shows source. If that’s not the layout you’re expecting, choose a different one from the same screen - there’s a ‘theme’ tab at the top right, just barely cropped from the screenshot.