Hello,
First of all, thanks for V-REP it has been very helpful in debugging problems I had with real world robots!
I installed the new version of V-REP and then noticed the syntax highlighting colors of the text editor changed (reverted back to the defaults).
I see that usrset.txt is stored in the "Program Files" folder, though configuration files should really be in %APPDATA%.
This is probably also the reason why the settings were overwritten and all color settings lost.
Could that be changed?
Ideally, there would be a way to configure the colors within V-REP directly, it's pretty tedious and requires many restarts (to see the changes in effect) until the right colors are set.