The improvements in PhotoLab 6.3 mainly target the Elite edition, with an extension to the soft proofing tools that can no incorporate on-screen simulations of papers and inks, to allow even more accurate color visualization and control over printed output.
For designers and professional photographers it’s often important to maintain consistent color rendition from the camera, through the computer display used for browsing and editing and right to the final output device, generally a printer. Colour management tools use software ‘profiles’ and hardware monitor calibration and printer calibration devices to try to ensure this consistency of color. It’s a complex process, and when images are going to be displayed on a screen rather than being printed, you have no control over the color rendition of the output device. Many photographers don’t use color management.