Wrong gradient in % bar CP437.

door/bar.go

@@ -119,7 +119,7 @@ func (bl *BarLine) Output() string {
 		if Unicode {
 			output += strings.Repeat("\u2588", steps/4)
 		} else {
-			output += strings.Repeat("\xb0", steps/4)
+			output += strings.Repeat("\xdb", steps/4)
 		}
 		if steps%4 != 0 {
 			switch steps % 4 {