[Update] Line Drawer performance improved and features added.

We have updated our creative AI "Line Drawer". It used to generate 6 types of line drawings, but with this update, it now generates 9 types. There are four types of plain line drawings, two types of shaded line drawings, two types of colored line drawings, and one type of line drawings with screen tones, for a total of nine types. We will continue to improve the AI in the future. Please continue to enjoy cre8tiveAI.