this is really strange..
when you have useHTML:true . you are not able to select fibonacci annotation
in the demo above click on 'Add Fib' and draw retracements
then try to select that to change color or more options..you will not be able to select that..
now comment out annotationsOptions --> labelOptions -->useHTML:true (or make this false)
then you will be able to select fibonacci retracements..
is this a bug ?