Changing Processing IDE color scheme

for example:
i try to play this
https://github.com/processing/processing/search?q=editor.token.function1.style&unscoped_q=editor.token.function1.style

could help to understand where it is used in the processing source code?

test:
for the 4 functions i found for words what changed:
( well that does not say much about the grouping… )

// test preferences.txt

void myFunction() {             
  for ( int i = 0; i<3; i++) {  //  editor.token.function3.style=#669900,plain ! for ok
  println();                    //  editor.token.function1.style=#006699,plain ! println ok
  }
}

void setup() {                  //  editor.token.function4.style=#006699,bold  ! setup ok
  size(100, 100);               //  editor.token.function2.style=#006699,plain ! size ok
  myFunction();
}