Component should be allowed to use the reserved "Elements" category

I agree, this is not needed anymore. 👍 Using the current heuristic of element being provided by XB is much better.

IOW:

• Do we want to keep this restriction? If so, we should update the message.
• Do we want to remove this restriction, and allow SDCs to state they're in the "SDC group"? If so, how should this metadata get exposed? As the "elements" category for XB Components?

Made the question for @lauriii more specific.

Do we want to keep this restriction?

I don't see why it would be needed anymore since we have the new way of determining elements.

Do we want to remove this restriction, and allow SDCs to state they're in the Elements "SDC group"?

Not right now. We should start by only allowing XB to provide elements. This way we don't have to manage dependencies to other modules from components built using elements. We may choose to change this later if we discover valid use cases to do this.

The two statements in #7 contradict each other.

On the one hand, you say we don't need the restriction, on the other, you say we don't want to allow SDCs to be grouped under "elements".

Please see the second bullet in #5. Each of those questions needs an answer.