Recipe unlock toast screen background is black, instead of white

The recipe unlock toast screen background is black, instead of white, which causes some darker or black items/blocks to be barely visible when toast screen appears to have unlock those recipes.

Step to Reproduce

1. Enable the "Recipe Unlock" experimental when creating new world.
2. Get some blackstones.

Observed Result
The recipe toast screen uses the black background instead of white, causing some blocks, like blackstone, to be barely visible.

Expected Result
The recipe toast screen uses the white background.