The new symlog scale appears to use the same tick generation logic as the linear scale. This can result in axes with large gaps when spanning multiple orders of magnitude. It would be nice to have ticks more akin to those provided by log scales, providing a better guide for large value spans!

We've had requests for symlog in Vega-Lite and Altair, so I'm anticipating this same request will hit our repos once we release new versions using d3-scale 2.2+.