The WebKit team presents a 27.3 beta feature that shows light websites as dark when the system is in dark mode. Sites with color-scheme: light dark are left alone. Others get luminosity inverted with hue preserved, text contrast kept at 4.5:1, and simple logos and SVG icons adjusted. To opt out, use color-scheme: light only. Better yet, build real dark mode with prefers-color-scheme and light-dark().
Safari introduces adaptive dark mode
