This screenshot shows the Character sets tab of the Step 9 "Specify Configuration Options" of the Oracle Database 18c Installer wizard.
The page contains three tabs - Memory , Character sets (active), and Sample schemas. The Sample schemas tab is being clicked.
Three character sets options are available: Use Unicode (AL32UTF8), Use OS character set (WE8MSWIN1252), and Choose from the following lists of character sets. The Use Unicode (Al32UTF8) option is selected.
There are four active buttons - Help, Back, Next, and Cancel.