Louis Nicolas van Blarenberghe
Searching for the colour of the French artillery during the Seven Years War, I have found this painter, who portrayed mainly the French Army during those years.
The information found on his paintings is enormous, from the gun carriage colours (I will use pale blue from Vallejo, some are grey), to the other carriages (grey, some of the very deep brick red).
Alos civilian clothes colour may be evinced fro some painting, I will use his characters to paint my civilians.