I have tried to find a solution to this and have spent ALOT of time with IB customer service with no luck, this BID/ASK colour coding does not exist on TWS unfortunately, which is so meaningless, the most important part of the T&S is to know whether the order was on the Bid or the Ask, right now all you see is uptick and down tick colouring, no change in price is white regardless of Bid/Ask.
Regarding the X100 what is the solution to this based on the 977.3e update please????
The x100 was resolved in an update and block filtering works now.
The color coding being limited to up ticks or down ticks remains and it sucks.