How do you stop decals from going off the shirt?

[KoopaScooper]

I've made a Decal pack, but only problem is, they go off the shirt. How many more pixels should I cut back? I'm at the edges.

[Ad Bot]

[Masterlegodude]

This happened with my zombie decal i made, it changed the color of the sides and the back of my torso, i'm also wondering why this is happening and how it can be fixed :/

[KoopaScooper]

Yep, that's the problem. I'm going to do some experiments. Maybe I can fix both.

[KoopaScooper]

Double Toast, but experimenting failed.

[Isjix]

256x256..?

[CHEESE]

256x256..?

I bet he already has it that way.

[Mustard]

Isnt it 512x512

[Masterlegodude]

Isnt it 512x512

That can be used, but the same thing will happen

This happens if there's too much colors and not enough transparency, that is why the default decals don't do that, cause they have a lot of transparency, whereas my zombie decal doesn't and covers so much of the body, i'm thinking this may be the cause... ._.