Problem with area colors

I’m using Plotly 1.1.0. I have two data series both with

type: 'scatter', fill : 'tonexty'

I don’t specify fillcolor and this is what I see.

When I swap data (data from Query1 to Query2, data from Query2 to Query1) everyghing looks OK

[mdtusz]

Yes, the default behaviour for 'tonexty' seems to be to fill to the x-axis for the first dataset (although I’m new so I could be mistaken!). It you would like that fill to be “empty”, you can set fill: 'none', and only the curve will be drawn.

'tozeroy' will always fill between the curve and the x-axis. It becomes a challenge of presentation because the “bottom” dataset will become obscured if any “layers” on top have values greater (or less than, in the case of negative values). The reason for having the overlaid fills is so as to preserve visibility of all the data. If you would like to get rid of the overlaid colours, you can set fillcolor using a string containing a hex code, or a rgb/rgba string such as 'rgba(241,111,203,1)'. By setting a full opacity of 1 however, any dataset value less than a successive dataset value (at an equivalent x-value) will be hidden.

[alexcjohnson]

@mdtusz spot on - 'tonexty' behaves identically to 'tozeroy' for the first trace. This is driven by the use case of filled area charts, where you always want to fill the first trace to zero and all the others to the adjacent trace - set set all the traces to the same fill mode 'tonexty' and this is what you get.