Created attachment 104651 [details]
Chart showing icon overlap

I have a chart with where a few key data points in an XY point-and-line scatter chart are displayed with an icon ("Format Data Point..." -> "Icon"), to make them stand out.

Unfortunately, the lines from some series render over the top of some icons, producing an ugly result.

It is impossible to prevent this from happening, since the only control available for draw order is at the series level. That is, I can put Series 1 in front of Series 2, which prevents Series 2 lines from overwriting any icons of Series 1, but then Series 1 lines will draw over any Series 2 icons.

It would be useful if the draw order (z-index?) of all chart elements, but especially data point icons, could be controlled... perhaps in a similar way to LibreOffice Draw with it's "Arrange" -> "Bring to Front".