Bluish Strip

[Ryxmd]

I just recently upgraded from a SS S0 to a space black S3. I went to swap the sport band from the M/L to the S/M and noticed a bluish strip on the watch where the band slides into. Anyone know what this is?
[doublepost=1518928178][/doublepost]Seems like a plastic tape covering the diagnostics port. Leave it alone?

 

[jav6454]

A picture would be nice.

 

[Newtons Apple]

Yes, picture would help.