what if you try to remove a style that isn't there?

[gordonwoodhull]

dc.graph.js/src/core.js

Lines 50 to 61 in 3027fce

	for(var i = 0; i<cascade.length; ++i) {
	if(cascade[i].n === n) {
	if(f)
	cascade[i].f = f;
	else cascade.splice(i, 1);
	return ret;
	} else if(cascade[i].n > n) {
	cascade.splice(i, 0, {n: n, f: f});
	return ret;
	}
	}
	cascade.push({n: n, f: f});

This looks to me like, if it's already there and you have a new value, replace it, if the new value is null, then remove it. If it's not already there then replace it whether or not the new value is null.

[gordonwoodhull]

I will state publicly that I hate these integer-based customization interfaces I have made for the past N years.

It's just the easiest way to grant the client control over the order of things they are plugging in. But it forces them to know the IDs of everything that is being added directly or indirectly.

This is also not the first bug I have found. It's not an intuitive interface for the developer either: just expedient!