[Pharo-project] class variable names: initial cap not enforced

I just loaded the code I have been developing in Pharo into Squeak (closure VM, using 4.10.2-7179web09.07 image base) and it had one complaint while loading: Squeak (seemingly) requires an initial cap on class variable names. [Maybe it allows it... but it popped up the debugger on an MC load.] Does Pharo allow the symbol to start with lower case by design, or was that act of omission? I am merely raising point to make certain it is an act of commission. -Cam