From bad0ea912792b0e7596ef0db085755045c42a21f Mon Sep 17 00:00:00 2001
From: nick black <dankamongmen@gmail.com>
Date: Sun, 17 May 2020 10:13:14 -0400
Subject: [PATCH] normal demo: reset underlying plane

---
 src/demo/normal.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/demo/normal.c b/src/demo/normal.c
index f8492ffce..e2a096a6a 100644
--- a/src/demo/normal.c
+++ b/src/demo/normal.c
@@ -81,6 +81,12 @@ int normal_demo(struct notcurses* nc){
   if(n == NULL){
     return -1;
   }
+  ncplane_erase(nstd);
+  cell c = CELL_SIMPLE_INITIALIZER(' ');
+  cell_set_fg_rgb(&c, 0xff, 0xff, 0xff);
+  cell_set_bg_rgb(&c, 0xff, 0xff, 0xff);
+  ncplane_polyfill_yx(nstd, 0, 0, &c);
+  cell_release(nstd, &c);
   for(int i = 0 ; i < 16 ; ++i){
     demo_nanosleep(nc, &scaled);
     if(ncplane_rotate_cw(n)){