General design
When I first skimmed the design, I thought that the design is very simple. But when looking closely, it turns out that the design is pretty meticulous to some extent. The author is really good at using all the elements and mixing them together harmoniously. That's why the appearance is simple, clean but very sophisticated and attractive at the same time.
Generally, this theme looks classic, clean but still, artistic and attractive.
Other elements
As a classic-oriented theme, the color palette contains grey and white colors. These choices are like bringing me back to the time, feeling extremely nostalgic. Similarly, the family fonts: Open-sans and Playfair-Display contribute considerably to the classic appearance of Adagio Lite. However, I can't change the body texts, which are quite slim and difficult for me to read if the post is too long.
The full-screen hero image is the most attractive part. Together with the full-screen menu, they make the first screen extremely impressive. This menu contains the sidebar, quite different from most of the other themes, right? This position of the sidebar can save the room for the body area and still appear conveniently in the sticky menu whenever you move. Plus, I really love the vertical page title and social icons on the 2 sides of this image, which look like the decorative patterns. Lastly, remember that this demo is the pro version, so you just have an image, not a post with title and excerpt like in the demo.
Slider and full-screen menu
The featured images of the posts on the archive page are beautified by the shadow effect. When I hover the picture, I feel like touching a 3D image. That makes the theme more lively and interesting.
The archive page of the demo
However, this is the design of the pro version. As for the free theme, the images are super large, nearly full-screen. Despite not having the shadow effect, these images on this page are still impressive.
The archive page of the free version
The footer is quite "humble" compare to the other factor but it's my favorite part. They are well-balanced, airy and still very nice thanks to the elegant social icons and a dividing thin line.
Footer
The most stunning feature on the single post page is the full-screen featured image. The heading and information are much smaller than this image so the first screen area focuses more on the image-heavy case of your blog.
Single post page
Responsive
Users can see the nice design of this theme on any devices. On a computer, laptop, tablet, and smartphone the layout and design are still good. However, the hero image doesn't keep its full size in the small viewport like a smartphone or tablet.
The responsive design checked by ami.responsivedesign.is.