First of all, just because you applied doesn't make you a partner. I could apply to be in the football team, but just because I applied doesn't mean I'm on the team.
Secondly, you need well over a thousand subscribers on average before you're even considered.
'First of all' relax he was only asking a question. But, to answer his question, you would need to be a 'full partner' in order to get things like custom thumbnails and banners. You don't necessarily need over a thousand subscribers to do it because there are a lot of people here who were partnered with way less subscribers.
I am perfectly relaxed thanks, I don't see where in my reply I was aggressive at any point. I made my point, and gave an example just in case of misunderstanding. Also, I'm aware you can get partnered with less, but in my time on the web I've been told many times that's a solid starting point.
You can be a beginner and also be a partner these days, I've seen it already and youtube is already starting to give custom thumbnails to creators.
it's cool.I didn't know that, thanks.