401 the axes of the grid corresponding to the warp and weft directions in the grid a colour is assigned to each point by locating points in the grid design situated near the edge of colour changes and by keeping in mind the direction between successive points part of the grid design is vectorized as is expressed in step s 402 so that it will be possible to recognize the figures in the card design in step s 403 card design in point grid is scanned for colour changes with mixed contours impossible to be compensated by correction lift plans when a colour change with mixed contour impossible to compensate by correction lift plan is detected a step 404 starts in which the card design in vector grid is scanned from the detected point of problematic colour change out to detect the figure line in the card design to which the point of problematic colour change belongs step 405 determining using the information on the figure lines detected in step 404 adaptation patterns in card design in vector grid as suggestion s for adapting card design to avoid mixed contours impossible to avoid by means of correction lift plans the method will be able either to confirm this adaptation immediately or to ask the user for approval still before carrying out the adaptation in case of the user.