For version 0.7.0.

centering-X

Alphabetical index
Xcenter_y

Namespace:  ..Shapes..Layout

This extension is not part of the prelude, since it will require a TeX label to be rendered.
Sections:    Label positioning

Label positioning

Xcenter_y
obj::§Drawable y::§Float §Drawable
Dynamic references:none
Shifts the argument veritically, treating it as the standard label (TeX `\$X\$´).