TransferChain's UI looks amazing. But here's something to improve:
(1) UI can be better by replacing the foggy images to vector graphics :)
(2) PDF preview is foggy, maybe can be improved for clearer preview?
(3) Sharing feature is a little bit limited. Maybe add the feature allowing us to share with public links? Share docs like word and PDF to others without enable them downloading the file :)

Hope TransferChain gets better and better!