examples/spec: set default for serialvdf
@@ -2326,10 +2326,10 @@ description = "'no' if display connected serial, 'yes' if connected parallel."
[serialvfd/custom-characters]
type = unsigned_long
check/type = unsigned_long
-check/validation = ^([1-9]\d*|0)$
+check/validation = ^(-83|[1-9]\d*|0)$
check/validation/match = LINE
check/validation/message = Must be any positive number including 0
-default = ;default is display type dependent
+default = -83
description = "Number of Custom-Characters."
[serialvfd/port]
