We can define a JS function in the .astro frontmatter, and use it in the HTML.
The 17th Fibonacci number is 1597
The 32nd Fibonacci number is 2178309
Having defined a list of objects, we can enumerate them and add CSS classes:
With a class, we can colour them
We can define a bool in the frontmatter, and use it to conditionally render
The bool is true so we will render
A different bool is false so we will not render