I guess I am right Actualy Israelis have this Scheme. Most of the other Arab nation F-16s r off usual gray colour scheme e.g: Jordon's. I have also seen USAF F-16 in the similar scheme. The UAE F-16s have bluish dark & Light gray colour scheme & has similar looks to the one u see now. Same dorsal spine & external fuel tanks. Have a look: Latest Block 52C/D+ are coming with external fuel tanks. PAF has also asked for external fuel tanks. This frees up the wet points for more weapons & also reduces wait of drop tanks from AC + Saves the money being spent on Drop Tanks which pilots usualy drop away. I think the Dorsal Spine also contains some liquid data from the Radar. My guess is that the avionics in it are all related to AESA Radars specialy if it is APG-80.