Wait!
There is new skin elements I coluld release
sadly for ers only
menu-button-back - size is573 x89
menu-button-edit - size is 575x89
menu-button-exit - size is 573x89
menu-button-freeplay- size is 573x89
menu-button-multiplayer- size is 579x89
menu-button-options- size is 578x89
menu-button-play- size is 565x89
over
menu-button-back-over - size is 583x89
menu-button-edit-over - size is 583x89
menu-button-exit-over - size is 583x89
menu-button-freeplay-over - size is 583x89
menu-button-multiplayer-over- size is 583x89
menu-button-options-over - size is 583x89
menu-button-play-over- size is 565x99
format is png
Edit: used the test build to test these elements