Okay I see, thats dope, and I will definitely consider doing that for myself. Just bc this is the feature recommendation thread though I will just clarify that my main objective is to have difficulty ratings that will show visually in the optional 'info' box in the main PBX menu, beside the star ratings. (If the feature gets added though, it should be filterable too, as you awesome dudes are suggesting).
Attached screenshot so you can see what I mean - I would suggest to display it in smaller text, aligned to the right of the 'star' ratings (as you can see I've replaced my star logo with beer mugs hehe
I find the info in this window is useful for guests, when I have visitors browsing my menu, and I think the difficulty rating is a 'missing' element that would improve overall user experience and should just be considered for future development