Black in resource pack's loading screen texture being read as transparency

[Pie-Not-Lie]

As the title says. This is a problem since the texture already supports and uses transparency. That makes this not only redundant, but also makes it impossible to use black in that texture. AFAIK there isn't a way around this, but maybe I'm just dumb :P

Edit: To clear any confusion: the mojangstudios.png texture is what I'm referring to.

[Motschen]

This is an unfortunate side-effect of the blend function used for the logo in vanilla.
You can however decide to use a better blend function by creating a custom color.properties file in the assets/minecraft/optifine namespace.
That file should contain the following line: screen.loading.blend=off