I like this, but unfortunately this shifts the number too far over on non-retina favicons (16px) :frowning:

What do you think about something like this?

```javascript
xOffset = multiplier / 2.0 + (multiplier - 0.5);
```

This will give us zero shift for 16px (non-retina), 0.5 shift for 32px icons (retina), and a bit more shift for even larger icons (never tried those myself).