Unsupported plotly.js features
This is a list of features that ggplot2 provides that Plotly doesn't have full (or any) support for.
| ggplot2 feature | plotly workaround | plotly timeline |
|---|---|---|
horizontal legend /bp-top.png)
|
vertical scrolling legend | NA |
multiple legends 
|
legends are merged into one legend | NA |
| borders around legend symbols | NA | NA |
legend markers by size 
|
single legend item | NA |