Design

Combined some feedback:

- Break address into 5 rows
- randomly highlight 2 characters on each row
- verify row by clicking highlighted characters
- once each row is verified, set to foregorund text
- once all rows are verified, enable send

Looking good!

I think to make it a little more polished, you could make the 0x even more transparent, and then center the address by 8 character widths (instead of the current 10)

/***** offline; reach out elsewhere *****/

I was thinking about dropping the 0x all together, but I'm thinking that if I'm some brand new person and I'm actually looking at the whole row and 0x is missing, I might think the address is incorrect.