Deployed is an option for displayed objects, cells, and notebooks that specifies whether their contents should be considered deployed, so that elements such as Slider, ...

Directive[g_1, g_2, ...] represents a single graphics directive composed of the directives g_1, g_2, ....

Editable is an option for displayed objects, cells, and notebooks that specifies whether their contents can be edited interactively using the front end.

EnterExpressionPacket[expr] is a MathLink packet that requests the evaluation of expr.

FontColor is an option for Style, Cell, and related constructs that specifies the default color in which to render text.

FrameMargins is an option for objects that can be displayed with frames which specifies the absolute margins in printer's points to leave inside the frame.

Infix[f[e_1, e_2, ...]] prints with f[e_1, e_2, ...] given in default infix form: e_1~f~e_2~f~e_3 .... Infix[expr, h] prints with arguments separated by h: e_1 h e_2 h e_3 ...

InputAliases is an option for cells and notebooks which specifies additional Esc\[ThinSpace]name\[ThinSpace]Esc aliases to be allowed on input.

Invisible[expr] displays as space that is the same size as the formatted version of expr.

Italic represents an italic font slant.