Signs have seemingly a different texture for each side instead of using the same texture.
Back texture of signs is still "harsher" than the front, despite it now being a writable surface
Overworld wood signs use the outdated wood texture on all sides
Bamboo sign uses same texture for front and back, unlike other signs
Items in spectator widgets, toasts icons, and stats icons use programmer art
Textures of "teleport to player" and "teleport to team member" icons have 1.13 eye of ender texture