What is meaning of this

 

Why code advice show two different color. what is meaning of this.

Below picture u will see: iBands and iBandsOnArray show in one color and iBarShift and iBars show another color. why?

 

It is probably the closes matches (alphabetically) are shown in green. I wish they would fix that so it would pop up the same way even if you type the B in lowercase.

Reason: