The period of grace concerns the validity of the visa, not the number of days you are allowed to stay in the Schengen area. The validity of the visa is the period within which you have to spend those days.
The 15 days period of grace is standard (Common Consular Instructions, page 72), even though you haven't seen it on the French website.
If your itinerary exceeds the number of days you are allowed to stay in the Schengen area, you certainly have a problem, as, among other things, you may be refused entry by the border control authorities.
As to the picture, some consulates are equiped with this new technology, some arent' yet.
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