Can AI make my blog easier on the eyes?

I’m using the lovely mnml theme for my blog and decided to try letting AI improve it from a readability perspective.

I used Gemini for the task, since I have a free Pro trial. Here’s the prompt I started off with:

Edit these styles with good readability in mind, giving it a pleasant relaxed feeling while also being beautiful.

I kept the suggested color scheme as it was, but I did ask for a slightly darker background for dark mode. The original one (#282c34) is still live, but I might switch to the proposed option: #252930. (Anyone who’s ever tried web design for more than 30 minutes knows how easy it is to get stuck on things like this. 😅)

Some of the other recommendations I kept, some I tweaked, and some I skipped entirely.

Here’s an example of some I decided to keep (along with Gemini’s comments):

body {
  /* ... existing background and color ... */
  font-size: 1.9rem; /* Slightly larger for improved readability and relaxed feel (19px) */
  line-height: 1.65; /* A bit more space between lines for better flow */
  /* ... rest of body styles ... */
}

/* Ensure consistent line-height for headings as well if not already inherited well */
h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.3; /* Slightly more space for multi-line headings */
}

p {
  margin-bottom: 1.5rem; /* Consistent spacing between paragraphs */
}

I don’t know if this qualifies as “vibe coding”, but it was my first attempt at using AI for web design guidance.

I’m quite happy with the results. What do you think?