Lights and shades around a dot

Is there a way to add lights and or shades around a dot to get a close result to the following image using geom_point?

I have thought about creating a gradient for each dot but I don't know how to implement it since each dot should have a single value.

Found the following topic where the author kind of achieved to get 3 colors per dot but I don't know the strucure of his data and it seems that he plotted each dot 3 times.

R ggplot increase points by size and by color for same variable

Reproducible example

##### Initiating data
dfDot <- data.frame(value=1,
                    group="A")

##### Display plot
plotDot <- 
  ggplot(data=dfDot, aes(x=group, y=value)) + 
  geom_point(size=80) + 
  theme_dark() + 
  theme(axis.title=element_blank(),
        axis.text=element_blank(),
        axis.ticks=element_blank())

Do you just want to add some blur to the point? You can do that with the ggfx library. For example

library(ggfx)

dfDot <- data.frame(value=1,
                    group="A")

##### Display plot
  ggplot(data=dfDot, aes(x=group, y=value)) + 
  with_blur(
    geom_point(size=80), sigma=20  
  ) + 
  theme_dark() + 
  theme(axis.title=element_blank(),
        axis.text=element_blank(),
        axis.ticks=element_blank())