Help! Me please!😊

Is there anything I can put on my babies stroller in the middle where her legs go? I don't like it being that skinny, she should be fine but I'm paranoid lol..I'm a new mom and my baby is almost 4 months so this stroller can adjust a lot, but she loves it like this, she's very curious and alert. She doesn't like it when we put her stroller laying down she wants to see everything.