Blink turning orange

I feel like this might be a very stupid question, but I am stumped.

In the standard Arduino IDE, why would the word blink turn orange like it is a reserved word?

Is it maybe something I did?

For clarification:
When I type this

void loop() {
blink <-----------------this turns orange
}

That simply means one of the libaries you have installed has marked it as a keyword. Even libraries you did not include in the sketch will do this. That's why the function is kind of stupid...

For example the LiquidCrystal library has marked it as a keyword.