Is your feature request related to a problem? Please describe.
Me and my friends like adding images to help with role-playing. Adding transparency for images in picture frames would unlock a lot of possibilities.

Describe the solution you'd like
Is it at all possible to allow for transparency on an uploaded image in game? I think it's a great opportunity to expand the mod.

Describe alternatives you've considered
I'm unsure if there are other mods with a similar feature, but the camera mod works incredibly well and it would be cool to allow for transparency.

Additional context
Example of RP purposes: My friend wants to add a picture of a microphone to make it look like an entity in the world. With a PNGs capability with transparency, it would allow him to make it look somewhat seamless. At the moment, I think it just turns the transparent parts into a solid color (black I think?).

I'm unsure how this would be implemented, but adding transparency would really enhance this mod further in my opinion. No worries if this can't be implemented, the mod is great regardless!

The frames always have a square outline. It would look very broken if uploaded images would have transparency.

Also duplicate of #25