The Christianization of the society revolutionised the visual arts, as well as other aspects of society. Art had to fulfil new functions, and whereas pagan art was abstract, Christianity required images clearly representing subjects. The transition between the Christian and pagan traditions is occasionally apparent in 7th century works; examples include the Crundale buckle and the Canterbury pendant. In addition to fostering metalworking skills, Christianity stimulated stone sculpture and manuscript illumination. In these Germanic motifs, such as interlace and animal ornament along with Celtic spiral patterns, are juxtaposed with Christian imagery and Mediterranean decoration, notably vine-scroll. The Ruthwell Cross, Bewcastle Cross and Easby Cross are leading Northumbrian examples of the Anglo-Saxon version of the Celtic high cross, generally with a slimmer shaft.