Why is it called Fast & White? The Q&A section only explains the Fast part.
Let me also add my voice saying that I think you should add a tooltip on top of the box saying "it is disabled for now" instead of letting the user guess.
Also it would be best if you added the option to switch the webpage's theme.
I'm not sure if it was with dex.fo exchange, but White was an additional option with Fast mode, where the user can request on clean and low-AML-score coins.
On the name: White isn't a separate option you request, it's the same Fast mode. It describes where the coins come from — in Fast & White, payouts are made from our own reserves, so the coins are fully exchange-sourced, with no bridge or routing trail. That's the difference from Chain mode.
On the tooltip: we don't plan to add one. When the mode is paused, the card is greyed out and can't be selected, and with the shimmer removed the inactive state is clear on its own.
On the theme switch: thanks for the suggestion, but we don't plan to add it.