--- vt420.c	2024-12-05 13:43:14.000000000 +1300
+++ vt420.c	2026-04-16 19:39:32.890197441 +1200
@@ -473,19 +473,21 @@
 static void
 fill_screen(void)
 {
-  if (do_colors) {
-    int y, x;
+  int y, x;
 
+  if (do_colors) {
     set_colors(WHITE_ON_BLUE);
-    for (y = 0; y < max_lines - 4; ++y) {
-      cup(y + 1, 1);
-      for (x = 0; x < min_cols; ++x)
-        putchar('E');
-    }
+  }
+
+  for (y = 0; y < max_lines - 4; ++y) {
+    cup(y + 1, 1);
+    for (x = 0; x < min_cols; ++x)
+      putchar('E');
+  }
+
+  if (do_colors) {
     /* make this a different color to show fill versus erase diffs */
     set_colors(WHITE_ON_GREEN);
-  } else {
-    decaln();   /* fill the screen */
   }
 }