I saw a model 2015 listed for sale that had what appears to me as ano on a lot of the parts (https://henningssonknives.files.wordpress.com/2014/10/image6.jpg) and am just curious if all the colors will wear off of a knife like this? I know the ano on my sebenza thumb stud didn't take long at all to wear so just curious since I've also handled other materials which held the ano perfectly fine with extreme wear.