A good place to drink in wolverhampton is called 'The Goose in the City'. im not sure if you can wear colours but the beer is cheep and the atmousphere is good. other than that there is a pub called varsity where i drank last year (but i was with my wolves mate) so im unsure if they would let colours in. (i had mine under a jumper)
I have been going to uni in wolves for 3 years and the one thing I have learnt is that nowhere in the city centre will let in any colours.
However, I'm sure a few of the old man pubs won't mind. You'll struggle to get into wetherspoons as that is where a lot of the wolves fans go. Revolution has big fuckers on the door during footie matches.
If anyone knows any pubs that will let in colours, please let me know!