diff --git a/hello_gradient/src/main.rs b/hello_gradient/src/main.rs
index 19f2798..e5d35a7 100644
--- a/hello_gradient/src/main.rs
+++ b/hello_gradient/src/main.rs
@@ -17,16 +17,30 @@ use lights_hal::{boot, delay, entry};
 fn main() -> ! {
     let mut lights = GammaCorrector(boot());
 
-    let mut red = Wrapping(0u8);
+    let mut t = Wrapping(0u8);
     loop {
-        red += Wrapping(1);
+        t += Wrapping(1);
 
-        let start = Rgb(red.0, 0, 0);
-        let end = Rgb(0, 100, 100u8.saturating_sub(red.0));
+        let red = Rgb(150, 0, 0);
+        let yellow = Rgb(150, 150, 0);
+        let green = Rgb(0, 150, 0);
+        let teal = Rgb(0, 75, 150);
+        let purple = Rgb(75, 0, 150);
 
-        (0..20u8).map(
-            |x| blend(start, end, gray(x.saturating_mul(15)))
-        ).render_to(&mut lights);
-        delay(500_000);
+        (0..16u8).map(
+            |x| blend(red, yellow, gray(x * 16))
+        ).chain((0..16u8).map(
+            |x| blend(yellow, green, gray(x * 16))
+        )).chain((0..16u8).map(
+            |x| blend(green, teal, gray(x * 16))
+        )).chain((0..16u8).map(
+            |x| blend(teal, purple, gray(x * 16))
+        )).chain((0..16u8).map(
+            |x| blend(purple, red, gray(x * 16))
+        ))
+        .cycle().skip(t.0 as usize).take(20)
+        .render_to(&mut lights);
+
+        delay(1_000_000);
     }
 }