Containers with different contents look different? I don't see the big deal. That seems like a reasonable design choice. Make nice rounded corners when content

Containers with different contents look different? I don't see the big deal. That seems like a reasonable design choice. Make nice rounded corners when content allows, but rectangle them up as needed? Seems like a nice adaptive design choice. Honestly making different apps slightly more visually identifiable in a sea of sameness doesn't seem like a big deal.