1 files changed, 4 insertions, 1 deletions
diff --git a/client/lib/color.js b/client/lib/color.js
index bbc137e..294317e 100644
--- a/client/lib/color.js
+++ b/client/lib/color.js
@@ -54,7 +54,7 @@ function channel(t, a, b, c, d, add, mul) {
   return a + b * Math.cos(2 * Math.PI * (c * t + d)) * mul + add;
 }
 
-function color(t, add, mul) {
+function color(t, add, mul, alpha) {
   let a, b, c, d;
   const rgb = [];
   for (var i = 0; i < 3; i++) {
@@ -64,6 +64,9 @@ function color(t, add, mul) {
     d = palette[3][i];
     rgb[i] = Math.round(channel(-t, a, b, c, d, add, mul) * 255);
   }
+  if (alpha) {
+    return "rgba(" + rgb + "," + alpha + ")";
+  }
   return "rgb(" + rgb + ")";
 }