Complex sentence: This is accomplished via the the special properties of the substance which causes the removal of part of the orange region of the color spectrum which when present would otherwise tend to make certain elements of a picture appear "muddy".
Split into simpler sentences: This is accomplished via the the special properties of the substance which causes the removal of part of the orange region of the color spectrum. When present, these group of colors tend to make certain elements of a picture appear "muddy".