I couldn't find a topic on the matter so I decided to make a new one on the SEELE Logo in the Rebuild series, particularly Q.
One of the larger questions of the fans of the Rebuild series has to do with SEELE's logo changing. Why the change? When? What caused it? Etc.
I was browsing Reddit and came across this SEELE logo found in the medical facilities(?) in NGE's episode "Rei 3":
- Emission spectrums from chemical elements
- DNA sequencing
The conclusion to draw is that this is not the first time SEELE(or NERV) has changed their logo to represent something not strongly identifiable.
However allow me to move 1 step further.
This is the only connection to the Artifical Evolution Lab SEELE Logo(which I pulled up from an old Evageeks article that I'll post at the bottom). As you can see some of the colors used in the analysis of the 4th Angel from NGE can be inconclusively assigned to the SEELE logo from NGE.
SEELE was established on a scientific basis, initially as an artificial evolution lab. The medical logo likely represents as stated - some sort of DNA sequencing or chemical emission. Some last thoughts and symbols that might play into this at the end of Q:
At the end of Eva Q, Shinji, Rei, and Asuka are seen walking away. Notice their trailing footsteps forms a double helix towards the end of the path. Perhaps this is a statement - that these 3 are the ones pushing forward and everyone else is stuck as a "failure of infinity," not able to move forward through time and evolution.
*Evageeks article - Strange Seele logo and Spectrum Emission Analysis