- Seed: expanded per-gen behavior + new full run seed behavior (random/increment/decrement before/after entire run) - Canvas: fix flicker during simultaneous pan+zoom via requestAnimationFrame batching - Upscaling: 3 session-level modes (HiRes fix, model upscale, model+HiRes) with tiled VAE support - Cooldown: configurable GPU breaks between generations with optional VRAM clearing Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>