In InfluxDB you can select the chart to show shading under the area. This works fine for positive values, but not for negative values. In my opinion “under the area” refers to the area between the line and x-axis. This means that the area between the x-axis and the line needs to be shaded. However, for negative values it still shades literally under the area until the bottom of the chart. This is not expected behavior, and honestly I can’t imagine anyone would want it this way.
Will this be fixed in upcoming releases?