Again thanks for the explanation!
You know, it’s fun because that tooltip did attract my attention when I first viewed the page on mobile. I was thinking “Great, a tooltip button that is not interactive on mobile. Are these guys using Nuxt UI?” And then of course I forgot to check it again on a PC 
After your explanation it’s a lot more clear.
There is still a question left about “when does the storage become cold storage”. Since I never see my sprite’s status become “cold”, is it correct to assume that the status of a sprite will never become “cold”, and only the storage will become cold when the sprite has been in “warm” for longer than 10 mins?
Sorry for digging so much into the terminologies.