I am using ggplot and use variable in color= option, this variable has 4 levels. As a result I am having the plot as below. Is there a way to have each color equally important, i.e. not like now that colors are being plotted on top of each other?

My current code:

myData %>%
  ggplot(aes(x = visit, y = response, group = patient, color=color)) +
  geom_line()

I know that it is possible to change the order in which the colors are plotted, for example

myData %>%
  ggplot(aes(x = visit, y = response, group = patient, color=color)) +
  geom_line()+
  geom_line(data = myData[myData$color == "1",], aes(x = visit, y = response, group = patient, color=color))

but it is not of interest for me, I would like to have colors equally important if possible