Stop wrapping bracket levels in rainbow brackets.
Stop wrapping bracket levels in rainbow brackets.

This looks really bad now that outer bracket levels are larger than
the inner ones.  It didn't matter so much if we repeated a color, but
it matters a lot if we make an inner parentheses huge!

google/codeworld,pranjaltale16/codeworld,google/codeworld,google/codeworld,pranjaltale16/codeworld,alphalambda/codeworld,alphalambda/codeworld,pranjaltale16/codeworld,alphalambda/codeworld