[spoiler]

It seems that's not allowed currently, if I'm reading it right. I'm not sure I like `-` very much. The reason why I don't like it is because of how double-click to select and line breaking works for the dash. Maybe allowing `_` in the typename, and the have the rightmost `_` serve as the separator might be more consistent.

But also, I'm bike-shedding and its only an ID

[kbumsik]

I like using "." for this case. Because types definition typically belong to a package or module, which commonly uses "." for separator.