RTE {
    default {
        proc.allowedClasses := addToList(arrow standard, arrow inverted)
        buttons.link.properties.class.allowedClasses := addToList(arrow, arrow inverted)
    }
    classesAnchor.arrow standard{
        class = arrow standard
        type = page
    }
    classes.arrow standard{
        name = Arrow standard
        requires = button
    }
    classesAnchor.arrow inverted {
        class = Arrow Inverted
        type = page
    }
    classes.arrow inverted {
        name = Arrow Inverted
        requires = button
    }
}

RTE {
    default {
        proc.allowedClasses := addToList(button--ghost)
        buttons.link.properties.class.allowedClasses := addToList(arrow)
    }
    classesAnchor.arrow {
        class = arrow
        type = page
    }
    classes.button--ghost {
        name = Arrow
        requires = button
    }
}