Line chart - 'Fill Between' settings

Davery

Currently line charts have the ability to have fill under a single line - but this fill option is pretty basic, and will simply color underneath the existing line to some unknown, negative value. It would be far more useful if the 'fill under the line' feature had a few more settings. In particular:

• fill between two lines
• fill between line and zero

These two settings combined with conditional color settings would provide a lot of immediate utility for clear, readily-interpretable graphs that are more intuitive than "fill to negative infinity".