Syntax highlighting is done using Prism.js with the default nord theme. You can customise to whichever theme you want from the plenty available prism themes.
An example HTML code block.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Example HTML5 Document</title>
</head>
<body>
<p>Test</p>
</body>
</html>
An example jsx code block.
const Greet = () => {
const message = `Hello World!`;
return <div>{message}</div>;
};
An example css code block.
.layout {
display: grid;
grid-template-columns: 5rem minmax(0, 1fr) 4rem;
}
...and many more. Explore all the languages supported by Prism.js.