DR NEON™ HiDef SuperStrings

My sister is staying in New York for a couple of weeks and I plan to ask her to buy some bass string for me. I always wanted to have the black coated one but I forgot the brand. I recently search online and found the DR Neon HiDef Bass strings and according to my bass expert friend, this string is the one!

Now I can't make up my mind which color I would get---ping, yellow, orange or green. Complete information *here*