Update theme_classic() (#5981)

* update `theme_classic()`

* accept snapshots

* add news bullet

NEWS.md

@@ -156,6 +156,8 @@
  is setup once in total instead of once per group (@teunbrand, #5971)
 * `facet_grid(space = "free")` can now be combined with `coord_fixed()` 
  (@teunbrand, #4584).
+* `theme_classic()` now has black ticks and text instead of dark gray. In 
+ addition, `theme_classic()`'s axis line end is `"square"` (@teunbrand, #5978).
 
 # ggplot2 3.5.1
 

R/theme-defaults.R

@@ -460,10 +460,12 @@ theme_classic <- function(base_size = 11, base_family = "",
  panel.grid.minor = element_blank(),
 
  # show axes
- axis.line = element_line(colour = "black", linewidth = rel(1)),
+ axis.text = element_text(size = rel(0.8)),
+ axis.line = element_line(lineend = "square"),
+ axis.ticks = element_line(),
 
  # simple, black and white strips
- strip.background = element_rect(fill = "white", colour = "black", linewidth = rel(2)),
+ strip.background = element_rect(linewidth = rel(2)),
  # NB: size is 1 but clipped, it looks like the 0.5 of the axes
 
  complete = TRUE