int green = memento.getInteger(GREEN_ID);
int blue = memento.getInteger(BLUE_ID);
int alpha = memento.getInteger(ALPHA_ID);
Color color = new Color(red, green, blue, alpha);
Type type = Type.valueOf(memento.getString(TYPE_ID));
double dx = Double.parseDouble(memento.getString(DX_ID));
double dy = Double.parseDouble(memento.getString(DY_ID));
return new GridStyle(type, dx, dy, color, lineStyle, lineWidth);
}