I just noticed a 'suggest a new: banner, icon, background image' tab on the homepage. Is that a new feature या has that always been there?

That's a new feature (for 1/2 months). All three are once useable per club. आप can to suggest any of them and change that club's icon/banner/background या all 3 of them. It would take 5 सोना to suggest each of them. आप also have to have 100 सोना for suggesting. After आप suggest therd would a polk about that where others can add options. Same सोना rules goes here. Even those who want to vote in those मतदानो have to spend 5 golds and have to have at least 100 सोना with them.
:-P