Add label to display on specific user role

We have a website that uses SabaiDiscuss plug in which we need some customisation for. Some users are given an 'Expert' user role and for those users we would like the word 'Expert' to show up on any questions or answers they post. I have attached an example so you can see how it should be displayed. It can show below the name if there is enough room. The word should be in orange so that it stands out. When applying for this project please reply with 'SD: User Role Labels in the first line or your reply. If the best way to do this is to show all user roles so any user role will be displayed along with the persons name then we would like that user role name to be black font colour so that it doesn't stand out. i.e. it is only the user role of Expert that we want to display in orange. All edited files need to be placed in wp-content/sabai/assets so that when we get an update to the plugin, it won't get over ridden. Thanks