That GTR logo with the multicoloured lines is brand new - it's wasn't there a few days ago.
I presume it's to more clearly show that the following are a part of GTR:
- Thameslink
- Great Northern
- Southern
- Gatwick Express
Whereas before it looked like just the following were:
- Thameslink
- Great Northern
Actually it was made and released internally a couple of months back, but for some reason they've been incredibly slow uploading it online.. If you go down to the new offices you'll see it splashed all over the walls there.
But still, for a company that's supposedly made no money so far rebranding after just a year seems a very sensible idea!