Compositor applies TintStrength as a texel->tint LERP (0=keep texel) with object opacity independent. New --gfx-log <file>: per-frame per-object draw/skip CHANGE log + set-texture/create-texture slot trace — the tool that root-caused the grey background (everything collapsing into slot 0). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>