Assigning color for particular dimension value in the line chart irrespective of the top 5 ranking

[#1]

I need help in changing colors for the line chart.
Line chart has 2 dimensions
1)Quarter on x-Axis q1,q2,q3,q4, irrespective of any quarter selection it is showing all quarters data
2)top 5 Vendors (The lines represents different vendors v1,v2,v3,v4,v5)and
Expression SUM(Value) in y-axis

I need to give different colors for top 5 vendors.  In top 5 vendor ,one of the vendors will be always in specific color say Vendor v2 should be yellow irrespective of the rank and other vendors need to assign some different colors based on the ranking

Is there any way we can do it in qlikview?

[sunny_talwar]

Would you be able to share a sample to take a look at? I believe it should be possible, but it will have to be tested