From 2ea22fce5e5904720220962aaef65cc3a3a94152 Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Sun, 20 Jan 2019 15:57:27 +0000
Subject: [PATCH] Should use DECFRA if not default, not if default. From Karl
 Beldan.

---
 tty.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tty.c b/tty.c
index b0aa190a..d3db798f 100644
--- a/tty.c
+++ b/tty.c
@@ -1102,7 +1102,7 @@ tty_clear_area(struct tty *tty, const struct window_pane *wp, u_int py,
 		 * background colour isn't default (because it doesn't work
 		 * after SGR 0).
 		 */
-		if (tty->term_type == TTY_VT420 && COLOUR_DEFAULT(bg)) {
+		if (tty->term_type == TTY_VT420 && !COLOUR_DEFAULT(bg)) {
 			xsnprintf(tmp, sizeof tmp, "\033[32;%u;%u;%u;%u$x",
 			    py + 1, px + 1, py + ny, px + nx);
 			tty_puts(tty, tmp);