Material is stripping black from it, and adding unwanted transparency

[Distul]

I’m using a PNG sprite sheet to make a flipbook material.

There are two issues I’m experiencing:
A - There should be a black trim around the sprites, it’s being stripped from the material.
B - The material should only be transparent where it is in the PNG file, but it’s making the entire material semi-transparent.

Materials are a bit frustrating to me as I don’t quite understand them – so I can only assume I’m doing something wrong. I’ve attached some photos which should help clarify.

Material

Preview of what’s happening

Sprite sheet (background is transparent)

[darthviper107]

It’s because you’re using additive blend mode, black is a value of 0 so it adds nothing.

[Distul]

Of course … thank you that helped a lot.

I changed blend mode to masked and plugged the Alpha return from the Flipbook node into opacity. Everything is fixed.