Complex sentence: Then through the use of a rolling press, five tons of pressure flattened the grains enabling every one of them to capture and absorb color and their microscopic size allowing the illusion that the colors are merged together.
Split into simpler sentences: Then through the use of a rolling press, five tons of pressure flattened the grains enabling every one of them to capture and absorb color. Although the colors are separated among the grains, they are microscopic in size which render the illusion that the colors are merged together.