Craie Jige vs Vert Anis Jige

Vert because we have Craie here and it discolors after frequent use
When you say it discolors, do you mean that it sort of yellows like LV whites do, or does it get dirty easily from handling? I'm pretty careful with my bags, but I don't want it to change color just from aging! Thanks for your (and everyone's) help!!