Why is "time" highlighted as a keyword?

I wonder why is "time" highlighted as if it would be a reserved keyword in my Arduino 1.8.2 IDE in Windows:

Looking at the example in the millis() reference, I don't see time highlighted:

it's not "reserved" it's just that one of the library you have it is defined as a keyword. it's ok to use.

for example if you have the TickTockShieldV2 library installed or SparkFun_MPU-9250-DMP_Arduino_Library or 9DOF_Razor_IMU and in many others time is defined as a keyword

the doc on the web site has it's own "highlighter" rules probably

Thanks, I'm now ok with with using time as a variable name.