Annoying faded icon on phone background?

There is this little faded house icon on the top left corner of my phone (pretty sure its from the tumblr mobile app dashboard) and it wont go away no matter what background i use or how much i restart my phone. I also did try deleting tumblr and restarting my phone, but that didnt work. It doesnt do much but it just bothers me. Also whenever i screenshot my phone background, that little icon wont show up...or, at least, wont be where its supposed to be on the screenshoted pic. Pls help its really bothering me

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