Versatile Variables Interface definition schema root element generic pane - container for other elements group of elements that can occur inside pane generic variable switch tabulator here comes all unreferenced variables user-defined button selectable pane group set of switched panes tabular selection elments that can occur inside tabgroup simple item switched item basic tabgroup item simple pane basic interface element - variable interface type of interface available interfaces if no interface specified, the default interface type, depending on the variable type, will be used Editbox with spin button checkbox or radiobox Button with user-defined appearance Combobox Combobox with edit control, based on strlist var option Editbox Editbox with "Browse" button for file selection Trackbar (slider) Groupbox Color chooser area Progress Bar (readonly indicator) variable id type of trackbar interface element type of checkbox interface element positioning rectangle push button element default Ok and Cancel buttons skin definition the bitmap defines the default rectange region, equal to the bitmap size The very first region will be combined with default region, equal to the bitmap size. All subsequent regions are combyned with the result of previous operations elliptic region polygon, defined by it's vertices simple rectangle rectangle with rounded corners region operation file name and id of bitmap type of editbox element possible menu items