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-rw-r--r--lisp/play/pong.el6
1 files changed, 5 insertions, 1 deletions
diff --git a/lisp/play/pong.el b/lisp/play/pong.el
index 36bd92137ec..07c72a129a3 100644
--- a/lisp/play/pong.el
+++ b/lisp/play/pong.el
@@ -156,7 +156,11 @@
(t ?\+))
((color-x color-x)
(mono-x grid-x))
- (((glyph color-x) [0.5 0.5 0.5])
+ ;; The colors used to be [0.5 0.5 0.5], but that produces a black
+ ;; color on 8-color tty's, which would make the border invisible.
+ ;; 0.51 produces white on such tty's, and at the same time has
+ ;; almost no effect on X and similar displays.
+ (((glyph color-x) [0.51 0.51 0.51])
(color-tty pong-border-color))))
(defconst pong-blank 0)