
Above is a zoomed picture from one of the screen shots.
Here is my theory on the top bar:
Padlock - The ability to create Private Races
Map Image - Either how many laps the races are or how many tracks in the race series.
Flag - The option to turn race flags on and off, yellow flags, red flag and black flag
Car - The option to turn damage on or off or various damage settings, mechanical or cosmetic etc etc
Speak - The option to turn either voice chat on or off. The option to turn pit crew cheif voice on or off?
The next two images are something to do with the amount of racers in the lobby or how many of your friends from your PSN that are playing GT5.