I and my colleague have a difference of opinion.
We are creating a chart of, lets say, fruits. Like this one:
But what if the value of oranges is 0%? Do we show the legend anyway? Like this:
Or do we leave it out? Like this:
We have a dashboard with a bunch of these kind of charts. One of us wants to keep the legend of oranges to keep the design consistent (all charts have three values), and the other one wants to keep it clean and only show the information that is truly important. All charts show the same three fruits, but with different values of course.