--- a/implementation.js	Fri Jul 22 10:22:17 2011 -0600
+++ b/implementation.js	Fri Jul 22 11:41:21 2011 -0600
@@ -512,7 +512,7 @@
 		// Maybe it's really black, maybe it's invalid.
 		outerSpan.color = "white";
 		color = getComputedStyle(innerSpan).color;
-		if (color == "rgb(0, 0, 0)") {
+		if (color != "rgb(0, 0, 0)") {
 			return null;
 		}
 	}