F-16 Have Glass
All the U.S. “Wild Weasel” F-16s are being given a new paint job similar to the one of the.F-35 Joint Strike Fighter.
It is called “Have Glass 5th generation” as it represents the evolution of the standard Have Glass program that saw all the F-16s receiving a two-tone grey color scheme made with a special radar-absorbing paint capable to reduce the aircraft Radar Cross Section: in fact, “Vipers” are covered with RAM (Radar Absorbent Material) made of microscopic metal grains that can degrade the radar signature of the aircraft.

For the moment, the JSF-like paint job will be applied to the F-16 block 52+  F-16CM (formerly CJ) Block 50 Fighting Falcon aircraft that can carry a variety of air-to-air and air-to-surface ordnance, including  HARM (High-speed Anti-Radiation Missiles) and precision-guided munitions.
Their role is to enter the enemy territory ahead of the strike package to take care of the enemy air defenses: radars and fixed and mobile SAM (Surface to Air Missiles) batteries.
Therefore, the units that will fly with the F-16CMs in the new color scheme will be those tasked with SEAD (Suppression of Enemy Air Defenses) missions: the 52nd Fighter Wing at Spangdahlem (Germany), the 35th FW at Misawa (Japan), the 20th FW at Shaw Air Force Base, the 169th FW at McEntire Joint National Guard Base (SC), and 148th FW at Duluth International Airport, (MN).
Whilst two aircraft in the U.S. flew the Have Glass 5 paint job for test purposes (98-0004 and 98-0005 flying with the 85th Test and Evaluation Squadron from Eglin AFB) the first aircraft spotted in the new livery is a Minnesota ANG F-16CM, 91-0391, that is currently deployed at Kandahar, Afghanistan.
The F-35 will replace the F-16CM in the SEAD role in the future

Have Glass 1.  F-16 block 50: H first generation of the program mainly focuses on adding reflective film on the hood. By this measure partially reduces the electromagnetic signature of the aircraft, the 'controlled' 'reflection of electromagnetic radar waves on the surface of the cap and not to the surfaces of the cockpit. Aircraft stand out from the golden mask, as in the photo above

 F16 CJ Block 50 Fighting Falcon

F-16 block 52+  According to open sources, Have Glass II program, with the extensive use of RAM (Radar Absorbing Material) reduced the electromagnetic trace of F-16 by 15%. The outer surfaces of the aircraft applied measures packages Gem Pacer and Pace Mud....

Pacer Mud: 60% of the surface of the F-16 is covered by a thin coating of RAM. The components of the material, have the capacity to absorb some of the energy of the electromagnetic waves impinging on the aircraft surface, thereby reducing the electromagnetic path
F-16 block 52+

Pacer Gem: Staining used over from RAM material, designed to reduce the infrared path of the aircraft. In this caused the metallic hue and the "dirty" side gradually acquires the F-16, but the appearance of the mirror the functionality

F-16 C/D blk52+

F-16 C/D blk52+/50+ Adv
For "internal" operations there are not enough data available. In the above photo, the white material surrounding the radar is RAM also far Have Glass V program. According to the author of aviationweek Bill Sweetman, not "eliminate" the aircraft but operates auxiliary when using interposer as it reduces the range at which the emitted electronic interference cease to hinder the enemy radar from detecting a target (burn through range), thus giving more "space" in the F-16.