[neogodless]

I would imagine the design convention is to show a + when you have more content hidden, and a - to indicate you can hide (minimize) it.

Is that the popular consensus, or is that an odd way of looking at it?

[yodon]

The accordion tag doesn't make any assumptions about icons. You can use smiley faces & frowny faces for open and closed if you prefer, or you can use plus and minus signs in either order or anything else.

The bigger more systemic documentation issue is the examples pages lack a view example source mode so there isn't an easy way to discover that icons are a user choice thing rather than a prebuilt styling thing.

[achr2]

Yeah, this threw me as well, it is implemented incorrectly..