Heres one of its stable-mates at Kings Cliffe, MC-Z. Note the obvious demarcation between the OD/Gray and the dark surround to the Star-and-bar (ie- Insignia Blue), not to mention the 79th FS square-tail squadron marking.
Also, no 20th FG P-38 ever had a single Meatball flag on it, let alone 14 of them.
Heres how a spring 1944 20th P-38 should look-
And heres two examples of how they actually did their killboards- it wasn't just a box of flag decals like they did in the Pacific (not to mention no 20th pilot was credited with 14 kills, period).
And like Dan said, we've been trying to get rid of "The Abomination" since day 1.