From 62993e9df3c7fad48d4ad899d1265b8736945a19 Mon Sep 17 00:00:00 2001
From: Robby Findler <robby@racket-lang.org>
Date: Mon, 19 Jan 2009 21:09:08 +0000
Subject: [PATCH] fixed the style deltas so that covered ranges that are inside
 uncovered ranges now color properly

svn: r13231
---
 collects/lang/htdp-langs.ss | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/collects/lang/htdp-langs.ss b/collects/lang/htdp-langs.ss
index de17f770ea..c205b937b8 100644
--- a/collects/lang/htdp-langs.ss
+++ b/collects/lang/htdp-langs.ss
@@ -1105,6 +1105,8 @@
                           ;; variation on 5.
                           (begin
                             (send on-sd set-delta-foreground "black")
+                            (send on-sd set-transparent-text-backing-off #f)
+                            (send on-sd set-transparent-text-backing-on #t)
                             (send off-sd set-delta-foreground "orange")
                             (send off-sd set-delta-background "black"))