gtk:render-option (context cr x y width height)

context -- a gtk:style-context object
cr -- a cairo:context-t context
x -- a number, coerced to a double float, with a x origin of the rectangle
y -- a number, coerced to a double float, with a y origin of the rectangle
width -- a number, coerced to a double float, with a rectangle width
height -- a number, coerced to a double float, with a rectangle height

Renders an option mark as in a gtk:radio-button widget. The :active state of the gtk:state-flags flags will determine whether the option is on or off, and the :inconsistent state whether it should be marked as undefined.