NOTE highlighting in vim for C/C++

c.vim

"" Add NOTE comment highlighting to C/C++ files
" Place this file in ~/.vim/after/c.vim

" This syntax matchesku the word NOTE
syn keyword	cNote		contained NOTE
" This add the cNote syntax keyword to the cCommentGroup cluster, so it only
" shows up in comments
syn cluster	cCommentGroup	contains=cTodo,cNote,cBadContinuation
" This links the syntax matcher to the highlight group Note
hi def link cNote Note
" This set the Note group highlight color
hi Note ctermfg=107 ctermbg=16 cterm=bold guifg=#87af5f guibg=#000000 gui=bold