How do I get rid of those blue and red lines on mobs? Idk how I did this, but I don't like it.Thank you!
To clarify she pressed F3 + G to toggle the chunk lines but when she turns it off the lines stay on any near by mobs.
Try pressing F3+B, as that command shows hit boxes for mobs and I believe those are the boxes you see on them.
A bunch of cool things are associated with F3 + (Letter), the one you hit was F3 + B, which shows all mob hit boxes and you can see all the things you can do by hitting F3 + Q.
Thank you for the help <3