Complex sentence: A very general trend of facture was from dark decoration on a light background in the Early Minoan to white and red decorations on a dark wash or slip in Middle Minoan, and finally a return to the earlier manner of dark on light in Late Minoan.
Split into simpler sentences: A very general stylistic trend was from dark decoration on a light background in the Early Minoan to white and red decorations on a dark wash or slip in Middle Minoan. Finally, there was a return to the earlier manner of dark on light in Late Minoan.