My indoor prayer plant has funny marks on leave

morganluco

My indoor prayer plant has some strange marks on the leaves that have slowly developed and spread across the whole plant. i've attached images so you can see what it is. I was wondering if anyone had any advice?

wild edges

Looks like dehydration marks either from the soil getting too dry or the air humidity being too low. Do you mist the plant at all? I'm pretty much misting mine daily with the heating on at this time of year.