Pictures

\A3\soft_f_gamma\Hatchback_01\Data\UI\portrait_car_CA.paa
\A3\soft_f_gamma\Hatchback_01\Data\UI\portrait_car_CA.paa
\A3\soft_f_gamma\SUV_01\Data\UI\portrait_suv_01_CA.paa
\A3\boat_f_beta\SDV_01\data\ui\portrait_SDV_ca.paa

referenced from (configFile >> "CfgVehicles" >> * >> "picture") for vehicles

C_Hatchback_01_F
C_Hatchback_01_sport_F
C_SUV_01_F
B_SDV_01_F
O_SDV_01_F
I_SDV_01_F

should have dimensions 128x64 and style matching \A3\Soft_F\Quadbike_01\Data\UI\Quadbike_01_CA.paa (as an example).