({{, (RefLink[UnderscriptBoxOptions, paclet:ref/UnderscriptBoxOptions]) 
is an option for selections that specifies settings for (RefLink[UnderscriptBox, paclet:ref/UnderscriptBox]) objects.}})

OpenersNotesSection(Spacer1)Details

The typical usage is (RefLink[UnderscriptBoxOptions, paclet:ref/UnderscriptBoxOptions])->{(Subscript[opt, 1])->(Subscript[val, 1]),(Subscript[opt, 2])->(Subscript[val, 2]),…}.

The following options may be specified:

An (RefLink[UnderscriptBox, paclet:ref/UnderscriptBox]) object can be created using (Key1[ctrl, $]).

OpenersPrimaryExamplesSection(Spacer1)Examples  (1)

OpenersExampleSection0(Spacer1)Basic Examples  (1)

The default format of an (RefLink[Underscript, paclet:ref/Underscript]) expression:

ExpressionCell[Underscript["x","0"]]

You can use (RefLink[UnderscriptBoxOptions, paclet:ref/UnderscriptBoxOptions]) to change the format:

ExpressionCell[Underscript["x","0"],UnderscriptBoxOptions->{BaseStyle->{Large,Red}}]

({{DocumentationFooterIconsRelatedFunction.png, ({{See Also}, {(RefLink[UnderscriptBox, paclet:ref/UnderscriptBox])  ▪  (RefLink[OverscriptBox, paclet:ref/OverscriptBox])  ▪  (RefLink[UnderoverscriptBox, paclet:ref/UnderoverscriptBox])  ▪  (RefLink[SubscriptBox, paclet:ref/SubscriptBox])  ▪  (RefLink[GridBox, paclet:ref/GridBox])  ▪  (RefLink[ScriptSizeMultipliers, paclet:ref/ScriptSizeMultipliers])  ▪  (RefLink[LimitsPositioningTokens, paclet:ref/LimitsPositioningTokens])}})}})

({{DocumentationFooterIconsRelatedTutorial.png, ({{Tutorials}, {▪(RefLinkPlain[Representing Textual Forms by Boxes, paclet:tutorial/RepresentingTextualFormsByBoxes])}})}})