Where is the setting for changing the appearance of armature bones? In 2.7x and earlier, it was a simple matter to change the appearance of armature bones from the fat/bulky pyramidal shapes they default to, to some other form.  Where is this function in 2.8x?  I've been looking all over the place to try and find it with no luck.
Same as before (unless it has changed in the latest versions?), Properties panel > Object Data > Viewport Display > Display As > B-Bones, etc.

If you want a custom shape, select the bone in Pose mode, then in the Properties panel > Bone > Viewport Display > Custom Object.