update reveal.js

scripts/reveal.js/css/theme/source/moon.scss

@@ -5,6 +5,7 @@
 
 
 // Default mixins and settings -----------------
+@use "sass:color";
 @import "../template/mixins";
 @import "../template/settings";
 // ---------------------------------------------
@@ -18,10 +19,6 @@
 /**
  * Solarized colors by Ethan Schoonover
  */
-html * {
-	color-profile: sRGB;
-	rendering-intent: auto;
-}
 
 // Solarized colors
 $base03:    #002b36;
@@ -47,7 +44,7 @@ $headingColor: $base2;
 $headingTextShadow: none;
 $backgroundColor: $base03;
 $linkColor: $blue;
-$linkColorHover: lighten( $linkColor, 20% );
+$linkColorHover: color.scale( $linkColor, $lightness: 20% );
 $selectionBackgroundColor: $magenta;
 
 // Change text colors against light slide backgrounds