ActiveStyle is an option for Hyperlink and related constructs that specifies styles to add when the constructs are active, typically as a result of the mouse being over them.

CellEpilog is an option for Cell which gives an expression to evaluate after each ordinary evaluation of the contents of the cell.

Character represents a single character in Read.

Expression is a symbol that represents an ordinary Mathematica expression in Read and related functions.

GeneratedCell is an option for Cell that indicates whether the cell was generated from the kernel.

Underlined represents an underlined font.

Word represents a word in Read, Find, and related functions.

$Linked is True if the Mathematica kernel is being run through MathLink.

There are four kinds of bracketing used in Mathematica. Each kind of bracketing has a very different meaning. It is important that you remember all of them. The four kinds of ...

GUIScreenShot[interface] generates a graphic that captures the current state of the runtime user interface.