This is far from the “visualize” need, but while GUI restore tree doesn’t reveal sizes, find command does.
Running commandline entry
Finished!
Listing contents 0 (3/27/2019 1:09:32 PM):
C:\stop test source\
C:\stop test source\length1.txt (1 bytes)
C:\stop test source\linuxmint-18-cinnamon-64bit.iso (1.58 GB)
Return code: 0
Big files would presumably have " GB)" in list for a dumb search, but a regular expressions can do better. My suspicion is that these are the original sizes without compression or deduplication, but it’s something.