Doesnt have backgrounds on iPhone or iPad!!!

If the title didnt give it away, for iPhone or iPad users, there is no way to add a background onto your slide! THIS IS VERY FRUSTRATING!!! If you are a procrastinator (like me) and you dont carry your laptop around with you there can be some issues.
Ex: Once I was on vacation and missed a few days of school. The google Slides presentation at school was due the day before I had to go back to school. My teacher accepts presentations and other schoolwork if you missed a day or two (because he assumes that you were sick ?) so on the LONG car ride home I had to finish the presentation, but I only had my phone and couldnt put my backgrounds in (you might be thinking "just use your laptop when you get home" BUT MY LAPTOP CHARGER SNAPPED IN HALF!!!)???
SO THERE YA GO!!! THEY NEED TO ADD THIS SO OTHER STUDENTS WILL NI LONGER SUFFER!!!

MariG05 about Google Slides, v1.2017.242