I have copied the Default theme.
I then go into the .less files for the site.
variables.plone.less
I change the color from blue to
@plone-sitenav-bg: #000000;
I save the file.
Then I compile the BARCELONETA.plone.less file.
The saved variables.plone.less file retains the #000000 color change, but the site theme does not retain it.
It reverts back to
.plone-navbar {
background-color: #007bb1;
What steps am I missing?