I AM DOING WORK IN ASSEMBLY DESIGN OF CATIA V5. I CHNAGE THE COLOUR OF DIFFERENT PARTS FROM GRAPHICS WINDOW/ GRAPHICS PROPERTIES TOOL BAR. NOW WHEN I INSERT A NEW PART AND DRAW A SKETCH, THE SKETCH SHOWN IN BLACK, HOW CAN I CHANGE THE SKETCH BACK TO ITS WHITE DEFAULT COLOUR, WHICH ALSO TELL THE STATUS OF MY SKETCH (LIKE FULLY CONSTRAINS IN GREEN ETC)