Maybe choose that color, as the British demanded it look like their Corvettes
or worse their best friends -- the French
During the Age of Sail, Corvettes were one of many types of warships smaller than a frigate and with a single deck of guns.
They were very closely related to sloops-of-war.
The role of the Corvette consisted mostly of coastal patrol, fighting minor wars, supporting large fleets, or participating in show-the-flag missions.
The English Navy began using small ships in the 1650s, but described them as sloops rather than Corvettes.
The first reference to a Corvette was with the French Navy in the 1670s, which may be where the term originated. The French Navy's Corvettes grew over the decades, and by the 1780s they were ships of 20 guns or so, approximately equivalent to the British Navy's post ships.
The British Navy did not adopt the term until the 1830s, long after the Napoleonic Wars, to describe a small sixth-rate vessel somewhat larger than a sloop.
The last vessel lost by France during the American Revolutionary War was the corvette
Le Dragon, scuttled by her captain to avoid capture off Monte Cristi, Haïti in January 1783.
Most Corvettes and sloops of the 17th century were 40 to 60 ft (12 to 18 m) in length and measured 40 to 70 tons burthen.
They carried four to eight smaller guns on single decks. Over time, vessels of increasing size and capability were called "Corvettes"; by 1800, they reached lengths of over 100 ft (30 m) and measured from 400 to 600 tons burthen.