I think mekko chart self selects the border color-which is off-white. sometimes the blocks are not visible if we have yellow or light color. how do I make the blocks within mekko chart more distinct with a black border around them.
In the Properties, choose the Colors tab.
You can see Plot Area and Plot Area Border.
You can make them black and change the width, then you can see the border.
Hope that's what you want.
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