filter charm patterns and colours like Buff

I think you guys should allow people to filter the colour of each charms like buff does also i think if you guys did the same with knives like the doppler or gamma doppler so people can filter for phase 1, phase 2 and phase 3 etc it would work better for filtering the users searches. understandably i know it would be diffuclt as some of the 3rd party websites dont have this feature but for example csfloat does and i think you guys could incorporate it