you misunderstood.How original tibia haste symbol looks like since i never played simple tibia i always played on naruto servers so i dont know how originally it should look like
Who knows maybe
once you open the picture and save it again, it can be saved in different formats and with different quality, if the resolution is lower compared to original it might not read your icons properly
and with regards to positioning, you can read this

What is x and y coordinates? - Definition from WhatIs.com
x y coordinates are respectively the horizontal and vertical addresses of any pixel or addressable point on a computer display screen The x coordinate i...