"Having light-dark() makes it trivial to support dual color modes in a single stylesheet and doesn't add too much weight (0.5kb gzip for ~500 variables). It also gives you the ability to switch themes mid-page."
"The difference here between hanging variable definitions off a class is that you can respect the user preference without using JS to toggle, light-dark() does all the work."
"What I actually want is the theme to be 'opposite' the current theme. After a handful of attempts I think I came across a solution that's easy to understand, maintain, and I even wrote a polyfill for you."
Adaptive light-dark() support was implemented in design system themes, allowing for easy dual color mode support. Instead of shipping duplicate token values, two separate stylesheets were created to improve performance. The light-dark() function enables theme switching mid-page without adding much weight. By using [data-theme="dark"] or [data-theme="inverted"], users can control the theme based on their preferences. This approach respects user choices and simplifies theme management, ultimately leading to a more dynamic and responsive design experience.
Read at daverupert.com
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