Accordion header design

[jbkolze]

Some concerns were raised by users about difficulty seeing the delineation between headers / sections of the Accordion component. The current design, by default, is pretty low-contrast without much of a dividing border.

Should the default header design be altered to more clearly define the separation, or should that be left to the user to handle in the Accordion contents using padding, borders, etc.?

[willbreitkreutz]

I'm totally fine with tweaking the default, and we can always give users a back-door to modify as needed

[adamscarberry]

Agree that the dividing line between headers when collapsed is difficult to discern:

The border could either be darker (you risk it looking too thick where they meet) or there could be space added between the headers

[willbreitkreutz]

I think a better border makes sense, i'd also like to rip out the border-radius on stacked headers, only add the radius on the first and last.