Change `fill` of `GeomRibbon` to match with the previous default colour#6079

yutannihilation merged 1 commit intotidyverse:maintidyverse/ggplot2:mainfrom

yutannihilation:fix/default-fill-of-geom-ribbonyutannihilation/ggplot2:fix/default-fill-of-geom-ribbonCopy head branch name to clipboard