why are some functions white and some red in the Arduino Create editor?

In the editor "readHumidity()" is in a white font.
And "readTemperature()" is in a red font.

  float h2 = dht2.readHumidity();
  // Read temperature as Celsius
  float t2 = dht2.readTemperature();
  // Read temperature as Fahrenheit
  float f2 = dht2.readTemperature(true);

You are right @jmp4,
it looks like there is some issue with syntax highlighting. I'll investigate more and let you know, thanks for your report!