The graphical user interface of tkDerm consists of the Tk widgets. They are user interface components such as windows, buttons, menus and scroll bars. Tk has a facility named ''option database'' to control the attributes of the widgets including color and size. By using this facility, you can customize the look and feel of tkDerm.
This chapter explains the process in which the attributes of the widgets are set and then describes the way to customize the appearance of tkDerm with the Appearance dialog.