If you are designing a custom kit or mod based on 1899, keep these authentic details in mind:
I will focus on the and how you can "develop" this look for yourself, but please clarify if you were specifically looking for a software mod file (.rar) for a game. The Official Retro 1899 Collection
FC Barcelona 1899 Ecru Half-Zip Fleece – Barça Official Store
: A modern take on the retro aesthetic, this ecru-colored sweatshirt features "1899" and "Barça" lettering with the original club shield embroidered on the chest.
: Retro kits prioritize a weighty, embroidered feel (Replica style) rather than the lightweight heat-transferred badges of modern "Authentic" kits.
: Use the classic Blue and Scarlet (#004D98 and #A50044).