StreamColorFunction is an option for StreamPlot and related functions that specifies a function to apply to determine colors along streamlines.
StructuredSelection is an option for Cell that specifies whether to allow only complete subexpressions in the cell to be selected interactively using the front end.
SubscriptBoxOptions -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option for selections that specifies settings for SubscriptBox objects.
SubsuperscriptBoxOptions -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option for selections that specifies settings for SubsuperscriptBox objects.
SuperscriptBoxOptions -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option for selections that specifies settings for SuperscriptBox objects.
SystemHelpPath is a global option that specifies which directories are searched for the help notebooks used within the help system.
White
(Built-in Mathematica Symbol) White represents the color white in graphics or style specifications.
$LicenseServer is a string that gives the name of the license server that is currently authorizing Mathematica to be run.
Symbolic Computation Values for Symbols Transforming Algebraic Expressions
When you write a program in Mathematica, you should always try to set it up so that its parts are as independent as possible. In this way, the program will be easier for you ...