<!DOCTYPE html> <html class="reftest-wait"> <head> <meta charset="utf-8"> <title>Tests that dynamically modifying font-palette causes the necessary rendering update</title> <link rel="help" href="https://drafts.csswg.org/css-fonts/#font-palette-prop"> <link rel="author" title="Myles C. Maxfield" href="mailto:mmaxfield@apple.com"> <link rel="match" href="font-palette-modify-2-ref.html"> <style> @font-face { font-family: "COLR-test-font"; src: url("resources/COLR-palettes-test-font.ttf") format("truetype"); } @font-palette-values --MyPalette { font-family: "COLR-test-font"; base-palette: 1; } @font-palette-values --MyPalette2 { font-family: "COLR-test-font"; base-palette: 0; override-colors: 1 #00FF00; } </style> </head> <body> <div id="target" style="font: 48px 'COLR-test-font'; font-palette: --MyPalette;">A</div> <script> let count = 0; function tick() { if (count > 3) { document.getElementById("target").style.setProperty("font-palette", "--MyPalette2"); document.documentElement.classList.remove("reftest-wait"); } else { ++count; requestAnimationFrame(tick); } } [...document.fonts][0].load().then(tick); </script> </body> </html>