The bug
The green and white progress bar displayed in the toasts which appear when starting the game cannot be retextured at all.
This is inconsistent with some other progress bars in the game, such as the bundle fullness bar (MC-275778), boss bars, the experience bar, horse jump bars, villager experience bars, and more.
How to fix
Introduce actual texture files for this bar.
Linked issues
relates to 1
Attachments
Comments 1

Can confirm.