Should the Natron viewer display unpremultiplied RGB?

[El_Artista (TheFckinUnicorn)]

I agree with Hank (@Shrinks99) on this:

Why are alpha channel images rendering with white outlines?

Nuke has a good feature that fixes a similar problem which is the “auto alpha” checkbox in the read node that will flood the alpha channel. I don’t think Natron has this and I’ve also seen people get confused by this problem. Including this in the read node and automatically turning it on for images or sequences that have no alpha data whatsoever seems like the best fix to me? At the very least if you don’t want to write a whole thing to detect alpha in the sequence hardcoding a whitelist of …