construct_label() should be able to take p-values.

[nickhaf]

          So, I've looked into it and the problem seems to be, that the p-column needs to contain TRUE and FALSE values instead of numeric values. That's because this function was used within another function, which converted the p-values into TRUE and FALSE values before using `construct_label()`. 

So for now you can just use TRUE/FALSE values in your example instead of p-values.
I will have to update the funciton a bit, so it can also take p-values, but I will open an Issue for that.

Originally posted by @nickhaf in #502 (comment)