usergui
Ovu skriptu ne treba izravno instalirati. To je biblioteka za druge skripte koje se uključuju u meta direktivu // @require https://update.greasyfork.org/scripts/460400/1157130/userguijs.js
this script is modified only to work with : https://greasyfork.org/en/scripts/460147-c-a-s-chess-com-assistance-system
2 things are modified: title + onclick close button
