Different colors for different posts

The Primary and Secondary colors are set in Theme Options > Styling.

As for how I did on the demo page, I simply used a <style> tag inside of the post itself, and added an additional custom css there to make it switch on a per-page basis. It’s just meant to display color variations.

so it’s not possible to have a diff color per category?

You can, let’s say you have a category named music. To recolor it on the top of the sidebars for those pages, you would do this in your custom css:

.category-music .s1 .sidebar-top,
.category-music .s1 .sidebar-toggle { background-color: red; }
.category-music .s2 .sidebar-top,
.category-music .s2 .sidebar-toggle { background-color: green; }

Thank you so much for your time and help!

and closed as resolved!