Quoted from spinal:
Two images show regions I'm talking about and other two are to show incredible level of detail of other parts of playfield which highlists plainness of ramp areas.
These ramps are prototypes and they said production would be clear, so they might have other changes planned for those areas as well. The clear ramps will also allow you to see what is behind them so they won't stand out as much.
This happened twice in one game. First time was on the gap between the bottom ring and playfield. Would be nice if the gaps were tighter on disks. Hopefully they add spinning the disks to the ball search since you had to nudge the machine to free them and it wanted to go SDTM.