KIT design language: numbers with four or more digits get thousands separators, as in "3,389 人" ("3,389 people"). Decimals are rounded to integers.
Examples
kit_num(3418)
#> [1] "3,418"
kit_num(c(5, 12345, 1e6))
#> [1] "5" "12,345" "1,000,000"