deprecated feature was likely used in the scDataviz package

[FionaMoon]

Hi，
I got waring when running tutorial.

ggout1 <- markerExpression(sce,
                           markers = markers,
                           subtitle = 'UMAP performed on expression values',
                           nrow = 1, ncol = 6,
                           legendKeyHeight = 1.0,
                           legendLabSize = 18,
                           stripLabSize = 22,
                           axisLabSize = 22,
                           titleLabSize = 22,
                           subtitleLabSize = 18,
                           captionLabSize = 18)

--input data class is SingleCellExperiment
Warning message:
The <scale> argument of guides() cannot be FALSE. Use "none" instead as of ggplot2
3.3.4.
ℹ The deprecated feature was likely used in the scDataviz package.
Please report the issue at https://github.com/kevinblighe/scDataviz/issues.
This warning is displayed once every 8 hours.
Call lifecycle::last_lifecycle_warnings() to see where this warning was generated.