R file type is not mapped

[Philippe Massicotte]

Based on https://www.nerdfonts.com/cheat-sheet, R programming language file type should look like this:

echo -e "file_type_r should look like \ue68a"                                                                                                                                                                          ✔  at 07:19:11  
file_type_r should look like 

Nerd font is correctly installed on my system (i,e, I see the icons in other terminal program, and the echo, https://dystroy.org/broot/icons/, also work).

However, they are not showing in Broot. I guess the mapping is not done.