I usually travel with black bags. I do that for a number of reasons: low profile, not standing out, darker bags seem to pass muster easier than brighter color bags when it comes time to weigh and measure. But, it also seems that 99.99999999999999999% of the other bags out there are also black. (Or it least it seemed that way the last time I went through security.) Easy pickings for a thief who can say they took my bag "by mistake." (Or an honest person not paying attention to the bag they're picking up.)
But not so with the new 400d Dyneema. No one makes bags in those colors/patterns except for Tom Bihn. So, it will be pretty difficult for anyone to just grab the bag and walk away without being spotted. And let's face it, the pattern/colors are easy to spot.