In rP20552#inline-1159 leper wrote:
Types are mostly something rada added. I still consider adding that a mistake.
Someone might (likely unlikely) come up with a use case for type properties.
But then they should be well defined and not as arbitrary as the description field.
I wouldn't disagree to delete them, here the diff.
It could be reverted easily when changing our mind.
The deprecation doesn't break mod parsing.