My apologies... its the top left on the mobile screen!

Hello,

So this isn't a super active forum, so you may need to wait more than a couple days. Also, this issue isn't really piwigo specific, so people may not feel like commenting.
And there is already a help doc about it here, which you will need to read to make sense of what I recommend: https://piwigo.org/doc/doku.php?id=user … q:css_code

You can simulate mobile on a desktop by shrinking your browser window. Then right click on the three bar icon and click "inspect".

In the css you will see

A .pwg-icon {
    color: #000000;
}

That's what is making it black. Follow the instructions on that link and try adding
a.pwg-icon {
    color: white;
}

If that doesn't work, try
a.pwg-icon {
    color: white!important;
}

Let us know how it goes.

That instruction changes the menu bar for a single browsing session.   I need to get to the CSS to change it and that I shall try and discover.

OK got it... thanks for your wonderful assistance...  All working fine now.