The altar fences and windows of those churches were highly decorated with transparent shallow string-like ornament that is called pleter (meaning to weave) because the strings were threaded and rethreaded through itself. Motifs of those reliefs were taken from Roman art (waves, three-string interlace, pentagrams, net of rhomboids etc.), but while in Roman art they only made the frame of a sculpture, in the Dark Ages it fills the entire surface. Sometimes figures from Bible appeared alongside this decoration, like "Relief in Holy Nedjeljica" in Zadar, and then they were dominated by their pattern. This also happened to engravings in early Croatian script – Glagolitic. Soon, the Glagolitic writings were replaced with Latin on altar fences and architraves of old-Croatian churches. Those inscriptions usually mention to whom the church was dedicated, who built it and when it was built, as well who produced the building. That was the way that ""barbarian newcomers"" could fit amongst the Romanised natives.