Arguments:
Description:
Set the current status. Used to define a returning value from a function.
(equivalent to shortcut command u).
Example of use:
$ gmic
image.jpg command "foo : u0=Dark u1=Bright status ${u{ia>=128}}" text_outline ${-foo},2,2,23,2,1,255

Command:
image.jpg command "foo : u0=Dark u1=Bright status ${u{ia>=128}}" text_outline ${-foo},2,2,23,2,1,255