These files will simply change the badge texture on the LSPD patrol cap interior prop within the Police Greenwood model to be silver instead of gold, as it was in vanilla day1 GTA V!

To install, simply use OpenIV (with a mods folder active) in "Edit Mode" and navigate to: Grand Theft Auto V \ mods \ update \ x64 \ dlcpacks \ polgreenwd \ dlc.rpf \ x64 \ levels \ gta5 \ vehicles \ vehicles.rpf \ 
and just replace "polgreenwd.ytd" and "polgreenwd+hi.ytd" files with the ones from this folder.