v0.16.0

Interface contract: carbon-interface v1.3.3 (unchanged from v0.15.0)
Firmware compatibility: unchanged from v0.15.0

A visualizer performance release. The 3D point-cloud viewer is now far lighter on
the CPU — enough to run comfortably on laptops with integrated graphics — with no
change to how point clouds look. No API changes.

Performance

• The visualizer uses dramatically less CPU. End to end, the point-cloud
  viewer process now uses roughly half the CPU it did; the rendering work itself —
  what this release rewrote — dropped by more than an order of magnitude. It runs
  comfortably on laptops with integrated graphics, and point clouds render
  identically.
• The region-of-interest (ROI) filter is much faster. Turning on the filter no
  longer causes a large drop in visualizer performance.

Behavior Changes

• Visualizer "Point Quality" dropdown replaced by "Point Style: Square / Round."
  The previous Square/Low/Medium/High quality levels collapse to two shapes, with
  Round the default. Round points are visually identical to the previous default
  points, and all shapes now cost the same to render.