Topic: Highlighting changes between proposed trades
When working on a trade with a partner and going back and forth to get the trade where both parties are happy, often small changes are done - removing a single card or swapping a printing/version. In larger trades, this is almost impossible to detect what was changed.
After User A submits a trade, anything new or changed (Qty. / Set / Condition) is somehow highlighted if User B counters. This state only needs to be visible until any change is applied by User A. The system will have to combine multiple changes if User B makes separate proposed changes since the last time User A logged into the trade.
I don't know if it's feasible to do this with changes alone, but at a minimum, this seems feasible when changes are locked with a proposed trade offer.