light_dirt_background.png and header_separator.png does not match options_background.png

MC-262549 Create New World menu uses outdated dirt texture Resolved MC-262762 'Create New World' screen still uses the old dirt texture for its background Resolved MC-262976 Create New World screen still uses outdated dirt texture Resolved MC-263370 Inconsistent Dirt Background in Menu Screens Resolved MC-263827 Backgrounds in some interfaces are inconsistent Resolved