commit d18f672fc9477f3c0cb7cc4ce8d9237ed825c612
author Bram Moolenaar <Bram@vim.org> Fri Jun 17 13:18:49 2016 +0200
committer Bram Moolenaar <Bram@vim.org> Fri Jun 17 13:18:49 2016 +0200
tree 8f61eb789e56825c9a2a31dadc8132888ba8e4ee
parent a02a551e18209423584fcb923e93c6be18f3aa45

patch 7.4.1942
Problem:    Background is not drawn properly when 'termguicolors' is set.
Solution:   Check cterm_normal_bg_color. (Jacob Niehus, closes #805)

src/screen.c

diff --git a/src/screen.c b/src/screen.c
index f55dba6..684401c 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -8967,9 +8967,12 @@
 		|| gui.in_use
 #endif
 #ifdef FEAT_TERMGUICOLORS
-		|| (p_tgc && cterm_normal_bg_gui_color != (long_u)INVALCOLOR)
+		|| (p_tgc && cterm_normal_bg_gui_color == (long_u)INVALCOLOR)
+		|| (!p_tgc && cterm_normal_bg_color == 0)
+#else
+		|| cterm_normal_bg_color == 0
 #endif
-		|| cterm_normal_bg_color == 0 || *T_UT != NUL));
+		|| *T_UT != NUL));
 }
 
 /*