How can I disable syntax coloring on files with no extension (file type) in VS Code?

Question

I'm trying to make notes files with either file type extension .txt or no extension (like notes.txt vs notes), but VS Code is insisting on syntax coloring, and I'm not seeing an option to disable it or even modify the settings.

The syntax coloring makes no sense to me anyway when I'm just writing English sentences, so it's just gumming up my usage. I can't even tell what language it's trying to check against. JSON coloring pasted into the file looks nice, but otherwise it's completely random to me.