winph wrote:try clicking Journal... i want to add contrast to navigation background and my logo. but i want to use white logo.
Just before I proceed to suggest something here, understand when you start changing things around, you are affecting global color schemes that are designed to work together. For example, your text is dark, your logo is white ... I don't know many background-images that would work nicely with BOTH black and white text on top. Only option would be a grey background. It will ALSO affect the menu background when menu is FIXED (eg when you scroll up slightly, so the menu reveals itself).
So below I have outlined how to achieve a grey background:

As you can see, already the dark text is struggling with the grey background. If you want to add this, simply go to settings -> custom -> custom CSS, and add:
.nav-wrapper {
background: #AAA !important;
}