Library not recognized (black instead orange) but any error shown

Hi everyone,
I'm pretty new using Arduino and I need help.
I try to get data from the IMU GY85 with an arduino UNO. I have download the following code and libraries from this web: Arduino and GY-85 9DOF (Accelerometer ADXL345, Gyroscope ITG3200 and Magnetometer HMC5883) + Angle Information Comparison
I have saved the libraries in my library folder (any folder is duplicated and all of the libraries start with #include "Arduino.h") but when I open the code, ADXL345 library is not recognized whereas the others are.
Moreover, although this library is not recognized, the code is compiled succesfully.

Any idea? I need this library to be recognized! Please help me
Best regards

Colour highlighting is eye-candy, and is implemented by the IDE and has nothing at all to do with compilation

I didn't know that. So, everything runs right although the library has not orange color. Thank you