It worked, p3lim. It's still a bit distorted but I can mess around with values till I get to where I want. Tyvm!
Edit: For those interested, here's the important part of the code and how it looks:
Lua Code:
Icon = {
Width = 40,
Height = 28,
TexCoords = {0.07,0.93,0.2,0.7},
},