Page content update on eclipse.org - Make "become a member" more visible

We would like to make the "Become a Member" tab more visible on this page https://www.eclipse.org/membership/

Here is the XD link: https://xd.adobe.com/view/50879eb0-0edb-4283-b650-52e7f947d18d-05d4/

So there would be just a colour change on that tab, please. Thanks!