Changed Sign Side (Condition) — Skript
Addon: Skript · Category: Condition · Since: 2.17
Syntax
[the] (front|back) [side] (is|was) changedDescription
Checks whether a side was changed in a sign change event.
Examples
on sign change:
the back side was changed
cancel the event
send "<red>It is not possible to change the back side of a sign!" to the player