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Description
I have a few bio customers who need to display hundreds to thousands of single letter markers like in the below graph:
@dfcreative already has a great example of single-letter rendering for regl-scatter2d here:
https://dfcreative.github.io/regl-scatter2d/copyrights.html
I'd like to propose that mode: text be enabled for scattergl, but only work for single letters (for now).
Note that mode: text currently does not do anything for scattergl: https://codepen.io/plotly/pen/dmZNjM
We've tried creating graphs like the above with SVG, but for a larger number of letters, they are too slow. Here is an SVG example with a mode: text scatter trace overlaid on a heatmap trace: https://plot.ly/~jackp/18395/ (Note how long it takes to update when dragging the slider).
