ShowCellBracket is an option for Cell that specifies whether to display the bracket that indicates the extent of the cell.
ShowSelection is an option to Notebook, Cell, and Style that specifies whether to show the current selection highlighted.
StreamPosition[stream] returns an integer that specifies the position of the current point in an open stream.
StyleMenuListing is an option for cells that specifies whether a given cell style is listed in the Format \[FilledRightTriangle] Style submenu.
ValidationLength is an option to FindSequenceFunction and related functions that specifies the number of elements in the input sequence that should be used to validate a ...
WatershedComponents[image] computes the watershed transform of image, returning the result as a matrix in which positive integers label the catchment ...
WindowClickSelect is a notebook option that specifies whether the window for the notebook should become selected if you click it.
WindowOpacity is a notebook option that determines the overall opacity of a displayed window.
$AssertFunction specifies a function to apply to assertions that fail.
$DisplayFunction gives the default setting for the option DisplayFunction in graphics functions.