If I create a boxplot in ggplot2 and convert it using ggplotly command, the outliers are outlined in black.
Here is a simple example:

library(ggplot2)
library(plotly)

p <- ggplot(mpg, aes(class, hwy))
g <- p + geom_boxplot(aes(colour = "red"))
ggplotly(g)

ggplot would show this chart:

whereas plotly would show this chart:

Is this something that can be fixed?