[feat] Add aliases for British spelling of colour

- Introduced 'colourblind_pal' as an alias for 'colorblind_pal'.
- Added 'scale_colour_colourblind' and 'scale_fill_colourblind' functions to complement existing colorblind scales.

From #180

Authored by @hangonasecond

Author: jrnold

NAMESPACE

@@ -10,6 +10,7 @@ export(canva_pal)
 export(circlefill_shape_pal)
 export(cleveland_shape_pal)
 export(colorblind_pal)
+export(colourblind_pal)
 export(economist_pal)
 export(excel_new_pal)
 export(excel_pal)
@@ -26,7 +27,6 @@ export(palette_pander)
 export(ptol_pal)
 export(scale_color_calc)
 export(scale_color_canva)
-export(scale_color_colorblind)
 export(scale_color_continuous_tableau)
 export(scale_color_economist)
 export(scale_color_excel)
@@ -46,6 +46,7 @@ export(scale_color_wsj)
 export(scale_colour_calc)
 export(scale_colour_canva)
 export(scale_colour_colorblind)
+export(scale_colour_colourblind)
 export(scale_colour_economist)
 export(scale_colour_excel)
 export(scale_colour_excel_new)
@@ -64,6 +65,7 @@ export(scale_colour_wsj)
 export(scale_fill_calc)
 export(scale_fill_canva)
 export(scale_fill_colorblind)
+export(scale_fill_colourblind)
 export(scale_fill_continuous_tableau)
 export(scale_fill_economist)
 export(scale_fill_excel)

R/colorblind.R

@@ -21,6 +21,10 @@ colorblind_pal <- function() {
   f
 }
 
+#' @rdname colorblind
+#' @export
+colourblind_pal <- colorblind_pal
+
 #' @rdname colorblind
 #' @export
 scale_colour_colorblind <- function(...) {
@@ -29,10 +33,14 @@ scale_colour_colorblind <- function(...) {
 
 #' @rdname colorblind
 #' @export
-scale_color_colorblind <- scale_colour_colorblind
+scale_colour_colourblind <- scale_colour_colorblind
 
 #' @rdname colorblind
 #' @export
 scale_fill_colorblind <- function(...) {
   discrete_scale("fill", palette = colorblind_pal(), ...)
 }
+
+#' @rdname colorblind
+#' @export
+scale_fill_colourblind <- scale_fill_colorblind