Just kidding, there is already a ton of that kind of setting being played.
Let's do this instead:
Precis: An island in the East Indies where bumbling-yet-oppressive French imperialists are stymied by swashbuckling American and European secret agents.
Conspectus: Ruled by Governor Croque and Captain Brogard in the name of Napoleon Bonaparte; improbable steam-powered inventions; intrigue, spy games, and general skullduggery; incompetent French soldiers clashing with masked heroes fighting for the people’s justice; historical anachronisms abound; missions delivered by revolutionary-minded parrots; guests appearances by Lewis & Clark, the Marquis de Sade, Blackbeard, Thomas Jefferson, and, of course, Napoleon; swordplay, swinging on chandeliers, cape-swishing; pirates, insurrectionists, assassins; so many puns.
Setting Rules I'd Use From the Savage Worlds Deluxe book: Heroes Never Die, High Adventure
Some new setting rules:
Everything is a Weapon
Jack of All Trades is full of swashbuckling action; even though the characters usually fight with rapiers and sabers, they also often use the environment to fight one another. To help encourage the use of items in the background (stray ropes on the dockside, flipped tables at an elegant party, etc.) drop all penalties for improvised weapons and assign them damage dice that exceed what you would assign in a more "realistic" setting. Also, let them be used creatively (with a bonus to the roll) for Agility and Smarts tricks.
You Can’t Take the Pun-ishment
Anyone making a wise-crack or pun right before making an attack gets a +1 bonus to their Fighting, Shooting, or Throwing roll.
Arcane Backgrounds: Weird Science, maybe pull in Alchemy from Regime Diabolique.