Add Custom Marker Symbols for Scatter Trace

Hi all, really liking this framework so far. One feature that would be great to have would be the ability to add custom marker symbols to the scatter trace. It looks like I'm not the first person to be in need of this: https://community.plotly.com/t/i-want-to-use-custom-icon-for-the-scatter-markers-how-to-do-it/6644

I'm currently trying to overlay 2 of the existing symbols on top of one another to get a square with the 'Y' symbol inside. I can achieve this within the plot window easily enough by using two separate scatter traces, one with each symbol. Unfortunately there doesn't seem to be a way to make this look right in the legend. If I could instead use a single trace that would solve the legend issue, either by stacking shapes or more generally accessing the SVG syntax that's already used behind the scenes to render these symbols.

Any thoughts on whether this is feasible?

未指定檔案或測試。首先追蹤散點 marker 符號和圖例項目是如何表示的，重點確認現有的基於 SVG 的符號是否能在單一 trace 中支援組合符號或自訂符號。完成標準是自訂 marker 能夠正確渲染，且對應的單一 trace 圖例項目與其相符。