Current Problems: On the confirmation page for a donation on the current skin ('17) there is a member ship button. In contrast to other buttons it is underlined when not hovered and not underlined when hovered – which is unlike the behavior of other buttons

Possible Solution: One way to improve the situation for the user is to get rid of the underline and use a darker green as hover color (this part is design wise not very structured, but to give a color: try #4e9641 )