You're having something like:
void loop()
- void is in red because it is a standard C++ predicat
- loop() is in black as it is defined here
Let's define then call test
void test() {}
void loop() {
** test();**
}
- The first test() remains in black as it is defined here.
- But the second test is coloured in orange as it is a call to a known function
So everything's normal 