[SOLVED] changes colors

That worked. Where can I change the lines—including those on the button—to brown (see attachment)? I tried a few settings, but apparently none of them were the right ones.

For the colors, you need to change the primary color to brown. You can do this in the template options under "Colors."

Sorry, but I can't find it.
I can't locate a 'primary' setting. Perhaps I'm in the wrong place.
As you suggested, I’m looking under 'Template Options' -> 'Colors' — I see 7 items there. Which one should I be looking at? None of these 7 items have 'primary' listed anywhere.

Kind regards
Oswald

Under "Color," select the colors for blue, green, etc. Then, a bit further down, assign these colors to the theme colors—for instance, assign a color to "Primary." It’s really quite simple. Don't you just need to scroll a bit further down, below the colors?

Sorry, but I really can't find what you're describing.
After "Color," I have 7 items:
Body,
Header,
Sticky Header,
Main Menu,
Dropdown Menu,
Off-Canvas Menu,
Mobile Menu.
While you can assign colors there, the line and the small block next to the title in the module remain blue. The color of the button doesn't change either.
Kind regards
Oswald

Hi!
The definitonclass is 'primary':

 

It is at the moment green:

 

It is in the layot-theming-colors:

 

Here you can set your own color: