Show exact p value in comparisons

[Hemantcnaik]

In example with below

ggplot(diamonds, aes(x = cut, y = carat)) +
  geom_boxplot(aes(fill = color)) +
  geom_signif(comparisons = list(
    c("Fair", "Good"),
    c("Very Good", "Ideal")
  )) +
  facet_wrap(~color) +
  ylim(NA, 6.3)

P value mentioned in D section p <2.22e-16 I want show exact values instead of this value

Thank you