CursorLineNr

[dylnmc]

You need to hi CursorLineNr so that it doesn't persist from other colorschemes and is set appropriately for this colorscheme.

[dpopchev]

Maybe just do

dimitar@kaktus ~/.vim/colors $ grep CursorLine badwolf.vim -n
192:call s:HL('CursorLine',   '', 'darkgravel', 'none')
dimitar@kaktus ~/.vim/colors $ vim badwolf.vim 
dimitar@kaktus ~/.vim/colors $ vim badwolf.vim 
dimitar@kaktus ~/.vim/colors $ grep CursorLine badwolf.vim -n
192:call s:HL('CursorLine',   '', 'darkgravel', 'none')
194:call s:HL('CursorLineNr',   '', 'darkgravel', 'none')
dimitar@kaktus ~/.vim/colors $