I'm not sure whether the one in the video is official, but I'm making a Roblox executor in the Lua language for Monaco, and I was wondering if there is a way to customise Monaco (e.g. changing some text colours for language stuff and links/strings)? The tutorial I followed was this: https://www.youtube.com/watch?v=2foHIdCKBec&t=602s
Also, is there a way to make a preview on the right of what's in the editor?