How to tell my friend I don’t like their room decor?

How to tell my friend I don't like their room decor?
How to tell my friend I don’t like their room decor?

Please just don’t! Unless there is something truly offensive (and not just in terms of taste), they are entitled to their own choice of decor and your comments pobably won’t be welcome. Lead by example, and do an amazing job on your own room?