Hello,
1. I am extreamly sorry but now there is no color change option in NapApp Theme.You have to do customization for it.But there is skin color change option in theme option you can try this. https://i.imgur.com/hSOBe4F.png
2. Another thing is the buttons “free trial” and “buy now” you can change the text & url also from metabox option.https://i.imgur.com/Cj0A2Ge.png. but can’t delete we will update this in future hope so.
3. There is no option for alignment. if you want you can do custom css for it.
Thanks & Regards