My monitor is leaving imprints of things so if I play Minecraft and go AFK for like 3 minutes, When I come back and move my player it leaves little shadows of what was there. I even played Blockland and when I came back it imprinted the QUIT button onto my screen. I don't know what type of monitor I'm gonna use but I'm pretty sure its going to be my TV screen.
EDIT: Also I can't put screenshots because it doesn't appear on screenshots.