Those clear pads are a super soft compound. They're supposed to give better braking on painted or powder coated rims. I read a review BMX Plus! magazine wrote on Odyssey's clear brake pads. They worked as advertised, but squealed like banshees, no matter how much toe in they put on them. On any rim with a proper brake track they described the braking as "digital" with no modulation. They even tried them on a cheap a department store bike, and they grabbed forcefully enough to bend the cheap steal calipers.
The real news, of course, is that there are freestylers who still run brakes.