slightly more logic transition code

Author: Rich Harris

content/tutorial/03-advanced-svelte/02-transitions/04-custom-css-transitions/README.md

@@ -68,8 +68,8 @@ We can get a lot more creative though. Let's make something truly gratuitous:
 					transform: scale(${eased}) rotate(${eased * 1080}deg);
 					color: hsl(
 						${Math.trunc(t * 360)},
-						${Math.min(100, 1000 - 1000 * t)}%,
-						${Math.min(50, 500 - 500 * t)}%
+						${Math.min(100, 1000 * (1 - t))}%,
+						${Math.min(50, 500 * (1 - t))}%
 					);`
 			}+++
 		};

content/tutorial/03-advanced-svelte/02-transitions/04-custom-css-transitions/app-b/src/lib/App.svelte

@@ -14,8 +14,8 @@
 					transform: scale(${eased}) rotate(${eased * 1080}deg);
 					color: hsl(
 						${Math.trunc(t * 360)},
-						${Math.min(100, 1000 - 1000 * t)}%,
-						${Math.min(50, 500 - 500 * t)}%
+						${Math.min(100, 1000 * (1 - t))}%,
+						${Math.min(50, 500 * (1 - t))}%
 					);`;
 			}
 		};