If you are a vim user, the following might help for editing diet templates:
First install vim-pathogen, if you have not already:
mkdir -p ~/.vim/autoload ~/.vim/bundle
cd ~/.vim
[ -e vim-pathogen ] || git clone https://github.com/tpope/vim-pathogen
cd autoload
ln -sf ../vim-pathogen/autoload/pathogen.vim ./
grep -q 'call pathogen#infect' ~/.vimrc || echo 'call pathogen#infect()' >> ~/.vimrc
Then install vim-jade:
cd ~/.vim/bundle
[ -e vim-jade ] || git clone https://github.com/digitaltoad/vim-jade
cd vim-jade/ftdetect
grep -q '\*.dt' jade.vim || echo 'autocmd BufNewFile,BufReadPost *.dt set filetype=jade' >> jade.vim
Enjoy colourful diet template files :-)