A high blur radius with low background opacity is what gives Apple's glass panels their soft, barely-there frosted look — heavier blur than a typical web glassmorphism card, and lower opacity so the background stays clearly visible through it.
blur: 20 · opacity: 0.15 · color: #ffffff · bgBlur: 10A higher blur radius (18-24px) combined with lower background opacity (0.1-0.2) than most web glassmorphism examples use — it reads as barely-there frosted glass rather than an obviously tinted panel.
Yes — swap the color to a dark tint (e.g. #000000 at low opacity) for a "smoked glass" variant that works over light backgrounds.
Yes, every slider is live — this is just a starting point tuned to match the iOS look; adjust blur, opacity, color and background blur to taste.