I'd like to change the stroke colour of a stack in my bar chart.
Ideally I aim to make it totally hidden (it's essentially a filler and is required to be present in the chart, but not visible. Sounds odd I know, but there you go).
In the snippet below the stack Bravo has two sets of data. Charlie and Delta. Charlie is the 'hidden' data, it helps prop up Delta. I can make it invisible by setting the color to 'none' and I can hide it from being in the legend.
But, it still has a black outline (stroke) and I'd like to remove that.
I would also like to remove the tooltip for Charlie, but retain it for all the other data.
Any help would be appreciated. Thanks.
This is a snippet of my code: