I think decks that have indices with all the denominations in black but the pip index in the suit color look good
The first pic has a comparison of Jaren Barlocker's Cactus Standard deck and his Desert Design deck (but overall the all red DD may be the better deck)
The second pic shows the Bicycle Ghost deck (no doubt the index pip being the only thing red helps it stand out brilliantly) and the other Ellusionist deck is the E deck (or Team deck) which was probably referencing it as this deck contains many references to past Ellusionist decks
I am sure I have another deck with the black/red indices mix but I am still looking for it
![Smile :)](./images/smilies/icon_e_smile.gif)