It appears you are utilizing Measure names and values. One workaround for this scenerio is to utilize a dual axis with one of the axi being the measure that should appear in reverse color. See the attached example with the value example1 (copy) that has been set to be green even though it is negative. See the green bar below the red in the example below. Note that I made the example 1 copy into a float() value to match measure values and allow for dual axis and synchronized axis. i hope this helps.