Hi @mcarusi,
Are you comfortable editing PHP template files? If so, I’d recommend you consider using the plugin’s templating system to accomplish this:
https://themeofthecrop.com/2014/01/28/customize-restaurant-menu-templates/
Alternatively, the Pro addon includes Item Flags which can be assigned to each item. You could create one for “Served hot” which would appear with each item you assigned it to.
https://themeofthecrop.com/plugins/food-and-drink-menu/
That wouldn’t get you to the red coloring. But it would give you a way to indicate the served hot items. And you could use that alongside the templating system to create the effect you want, if you’re comfortable working with a bit of PHP and CSS.
