"Pretty" is in the eye of the beholder | CSS-Tricks
Briefly

Jen Simmons highlighted the new implementation of WebKit's text-wrap: pretty in Safari Technology Preview, which enhances typography by improving ragging, reducing hyphenation, and eliminating orphaned lines, unlike Chromium's narrower focus. The performance concerns cited by Jen suggest that while Chromium primarily modifies the last four lines of text, WebKit's solution processes the entire paragraph, thus providing a more seamless reading experience for long-form content. Essential for developers, implementing text-wrap: pretty is safe for typical paragraph lengths, ensuring readability without sacrificing performance.
WebKit's text-wrap: pretty improves text aesthetics by enhancing ragging, reducing hyphenation, and eliminating orphaned lines, providing better typography for long-form content.
Unlike Chromium's limited adjustment to just the last four lines, WebKit's implementation broadly adapts the whole paragraph for better overall text presentation.
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