Metaphorical Use
The expression fig leaf has a pejorative metaphorical sense meaning a flimsy or minimal cover for any thing or behaviour that might be considered shameful, with the implication that the cover is only a token gesture and the truth is obvious to all who choose to see it.
A metaphorical fig leaf is something visible but innocuous, as against a coverup in which the existence of something may be entirely hidden.
In the context of negotiation, an offer might be characterized as a "fig leaf" if that offer is actually a ploy to conceal a sinister plan.
Read more about this topic: Fig Leaf