Problem with time line chart

Dear SIr,
I have prepared one timeline chart, I herewith attached file for your reference, in which for each task I took two rows one for standard and one for actual, but now I want the same in a single row with two colours, means when the actuals are crossing the standards it should turn red from green. if it is on par with standards it should mix with two colours (green and red)

Your help is highly appreciable.

Regards,
Murali Krishna R

Dear Admin,
I have not received any solution for my problem, could you please explain the problem. And also let me know Is it possible to post the same problem into other site? Since it is not solved. Kindly clarify me. I dont want to break the rules of the forum

Regards,
Murali.