I want to set the color of the perl function 'open' to another color compared to the other functions.

I have tried setting [keywords] in filetypes.perl

[keywords]

primary=......

secondary=open

in the colorscheme file I have

[named_styles]

keyword_2=#ff00000;;false;false

but it does not work

Also do keywords_1, keywords_2 etc correspond to the line number under [keywords] ? I cannot find this in the documentation.

Thanks

  Rob