SSRS 2008 - Dynamic bar color in a barchart within a matrix

Perhaps I can't actually attach the RDL...?

Here is a script that builds a sample dataset for the above screenshot:

WITH cteBaseData AS (
        SELECT
                Company
        ,       CalendarYear    
        ,       PONumber
        ,       Quantity
        ,       QtyRange
        FROM (VALUES
                ('Company A'    ,2012   ,'ABC'  ,50             ,'1-50')
        ,       ('Company A'    ,2012   ,'BCD'  ,75             ,'51-100')
        ,       ('Company A'    ,2012   ,'CDE'  ,40             ,'1-50')
        ,       ('Company A'    ,2012   ,'DEF'  ,110    ,'101-150')
        ,       ('Company A'    ,2012   ,'EFG'  ,200    ,'151+')
        ,       ('Company A'    ,2012   ,'FGH'  ,25             ,'1-50')
        ,       ('Company A'    ,2012   ,'GHI'  ,50             ,'1-50')
        ,       ('Company B'    ,2012   ,'ABC'  ,100    ,'51-100')
        ,       ('Company B'    ,2012   ,'BCD'  ,100    ,'51-100')
        ,       ('Company B'    ,2012   ,'CDE'  ,100    ,'51-100')
        ,       ('Company B'    ,2012   ,'DEF'  ,100    ,'51-100')
        ,       ('Company B'    ,2012   ,'EFG'  ,200    ,'151+')
        ,       ('Company B'    ,2012   ,'FGH'  ,25             ,'1-50')
        ,       ('Company B'    ,2012   ,'GHI'  ,50             ,'1-50')
        ,       ('Company C'    ,2012   ,'ABC'  ,50             ,'1-50')
        ,       ('Company C'    ,2012   ,'BCD'  ,40             ,'1-50')
        ,       ('Company C'    ,2012   ,'CDE'  ,250    ,'151+')
        ,       ('Company A'    ,2013   ,'ABC2' ,50             ,'1-50')
        ,       ('Company A'    ,2013   ,'BCD2' ,75             ,'51-100')
        ,       ('Company A'    ,2013   ,'CDE2' ,40             ,'1-50')
        ,       ('Company A'    ,2013   ,'DEF2' ,110    ,'101-150')
        ,       ('Company A'    ,2013   ,'EFG2' ,200    ,'151+')
        ,       ('Company A'    ,2013   ,'FGH2' ,25             ,'1-50')
        ,       ('Company A'    ,2013   ,'GHI2' ,50             ,'1-50')
        ,       ('Company B'    ,2013   ,'ABC2' ,100    ,'51-100')
        ,       ('Company B'    ,2013   ,'BCD2' ,100    ,'51-100')
        ,       ('Company B'    ,2013   ,'CDE2' ,100    ,'51-100')
        ,       ('Company B'    ,2013   ,'DEF2' ,100    ,'51-100')
        ,       ('Company B'    ,2013   ,'EFG2' ,200    ,'151+')
        ,       ('Company B'    ,2013   ,'FGH2' ,25             ,'1-50')
        ,       ('Company B'    ,2013   ,'GHI2' ,50             ,'1-50')
        ,       ('Company C'    ,2013   ,'ABC2' ,50             ,'1-50')
        ,       ('Company C'    ,2013   ,'BCD2' ,40             ,'1-50')
        ,       ('Company C'    ,2013   ,'CDE2' ,250    ,'151+')
        ) AS T(Company, CalendarYear, PONumber, Quantity, QtyRange)
)

,       cteSeries AS (
                SELECT                  '1-50' AS QtyRange
                UNION SELECT    '51-100'
                UNION SELECT    '101-150'
                UNION SELECT    '151+'
)

,       cteDataMap AS (
        SELECT
                c.QtyRange
        ,       b.Company
        ,       b.CalendarYear
        ,       b.PONumber
        FROM (
                SELECT DISTINCT
                        Company
                ,       CalendarYear    
                ,       PONumber
                FROM cteBaseData
        ) AS b
        CROSS JOIN cteSeries AS c
)

SELECT
        m.Company
,       m.CalendarYear
,       m.QtyRange
,       b.PONumber
,       COALESCE(b.Quantity, 0) AS Quantity
FROM cteDataMap m
LEFT JOIN cteBaseData b ON
        m.Company = b.Company
AND m.CalendarYear = b.CalendarYear
AND m.PONumber = b.PONumber
AND m.QtyRange = b.QtyRange