You can control some aspects of the behavior of tkDerm with the Preferences dialog. The preference control is realized by the same Tcl facility with which the appearance control takes effect: the option database. Therefore, the mechanism by which the preference settings come into effect is essentially the same as that by which the appearance settings do.
This chapter describes how the preference settings take effect and then how to use the Preferences dialog, followed by a detailed explanation for each item in the dialog.