Actually, I wouldn’t have a problem with any of your examples. I don’t like coffee OR donuts personally (OK, I’m weird), and I can live without the “coffee hour”–it’s an EXTRA and in a lot of cases a distraction from liturgy AND from service and community as well.
I eat PB& J sandwiches on all Fridays, Lenten or not, already, so again, no prob.
While my uniform was black watch plaid, I could even go for the hot pink. Men used to wear plenty of pink–even ol’ George Washington had some pretty colorful shirts and breeches. . .and, hey, why not have people wearing a nice liturgical rose color symbolizing joy?
You see, the examples you gave aren’t strange ideas. The Church never had “coffee-and-donuts-to-be-served-post-mass” encyclicals or doctrine, the Church has traditionally emphasized Friday penance via abstinence, and the Church has a long history of distinctive dress (habits for clergy and uniforms for students).
Now, if you said that the newly elected Pope decided to have all Christians burn their Bibles because he wanted us to forget it, he was going to have us learn a new concept of Jesus instead via music videos. . .THAT would be a real new idea.
Not to worry though–the Holy Spirit will defend the Church from any doctrinal errors being taught.