Different color bars in stacked bar

[peterbe]

I messed with the example and changed the data on the 'March' row. I replaced B with D. (Perhaps March doesn't have a B)
Nothing happened.
I was expecting the March column (right-most) to have a different color for the D value.

data: [
      {month:'Jan', A:20, B: 5,  C: 10},
      {month:'Feb', A:25, B: 10, C: 20},
      {month:'March', A:30, D:50, C:10}
  ],

[peterbe]

Before changing March's keys:

After removing the B:50 and replacing it with D:50:

[jolo-dev]

@peterbe A valid point.
Do you think in that case it shouldn't be considered at all or should be but marked with a different color because it is a different key?

[peterbe]

@peterbe A valid point.
Do you think in that case it shouldn't be considered at all or should be but marked with a different color because it is a different key?

Different color.
How else should I visualize this?