EndNote chang citation text color




I am working in Microsoft Word 2003  and  EndNote X(2114).  In order to distinguish the citations formatted as (1),(2),(3)…etc in Word document, I want to change the color of citations in Word automatically in creating the citations,  not to change them manually. Could you tell me how to do this?  


I  just change the front color of  in-text-citation, not the background color.


For example:     The ETL implementation such as the application described in Byrne [1].


in this sentence, the color of [1] is Blue, not the default gray color. 




This is not possible with endnote.

Thank you very much for your advice.