try yellower

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/overflow-tube.ps.pl b/overflow-tube.ps.pl
index c3e998fb20289e5911d186a4dc8104abd9c0ace5..d2baaf4509b0914bbb0cd135c2bd4a9f53def944 100755 (executable)
--- a/overflow-tube.ps.pl
+++ b/overflow-tube.ps.pl
@@ -152,7 +152,7 @@ gsave
     newpath
     0 0 chip 0.5 mul 0 360 arc
     gsave 0.5 setlinewidth $black stroke grestore
-    0.59 0.77 0.63 setrgbcolor fill
+    0.80 0.89 0.63 setrgbcolor fill
   grestore
 
   -4.7 1 moveto ($money) show