regionColor cannot work in REmapH, why and how to deal with it?

[higackrmb]

i want to plot a heatmap with REmapH. i set the regionColor was white as below.

`#install.packages("devtools")
#devtools::install_github("Lchiffon/REmap")
library(devtools)
library(REmap)

options(remap.js.web=T)

#读取数据(通过inport dataset（excel）导入)

head(mydata_heatmap)

#str(mydata_heatmap)

#attributes(mydata_heatmap)

df = as.data.frame(mydata_heatmap)

map_out<-remapH(data=df, #效果如下图
maptype = '四川',
theme = get_theme(theme = "",
lineColor = "",
backgroundColor = "white", #整体背景颜色
titleColor = "black", #标题颜色
borderColor = "grey", #区域边缘颜色
#regionColor ='white',#区域颜色
labelShow = F, #区域名称是否显示
pointShow = T,
pointColor = '',
regionColor="White"),
blurSize = 70,#设置点的模糊程度,越大越模糊
color = c('blue', 'cyan', 'lime', 'yellow', 'red'),
minAlpha = 1,#如果统一值小于minAlpha，则rempaH将设置为minAlpha，以确保小数据值也可以在图表上可见
opacity = 1,#地图的不透明度，默认为1
title='Sichuan'
)
plot(map_out)`

but i got a heatmap with black regioncolor (the heatmap was linked below), how to deal with it?