Fix base16 dark styles

R/make_functions.R

   base16_palette <- fs::path_file(palette_file)
   base16_info          <- get_base16_theme_info(palette_file)
   base16_attribution   <- base16_info$attribution
-  base16_rstudio_style <- base16_info$rstudio_style
   base16_name          <- base16_info$name
+  if (base16_info$isDark) base16_rstudio_style <- base16_info$rstudio_style
   
   base16_theme <- whisker::whisker.render(
     readLines(here::here("src/base16/base16_template.scss"), warn = FALSE)
   base16_meta <- readLines(palette_file, n = 2)
   info$attribution <- base16_meta[1]
   info$rstudio_style <- base16_meta[2]
+  info$isDark <- FALSE
   if (base16_meta[2] == "") {
+    info$isDark <- TRUE
     info$rstudio_style <- "/* rs-theme-is-dark: TRUE */"
   }
   rgx_name <- "/\\*\\s*([[:alpha:][:punct:] ]+) by"

src/base16/base16_template.scss

 /* rs-theme-name: Sassy - base16 {{base16_name}} */
+{{#base16_rstudio_style}}{{base16_rstudio_style}}{{/base16_rstudio_style}}
 
 @import "palettes/base16/{{base16_palette}}";