I tried to find the css selector in the dev tools myself, and I can target the entire header, the icons, the space between the icons and the end of the header, but I haven’t been able to change the background color of only that portion of the header - which is my goal. I’ll attach an image below + the css i’ve tried.
The minimal theme has colored the portion of sidebar I’m looking for so I’m trying to narrow down what section of their code does it, but really i’m just changing variables to see what changes since I only know basic css LOL
If I can’t find the area using the element inspector (the box with an arrow), I have a look in the Elements section expanding the > s as I go until something looks promising. Then I click in there and have a look at the Styles section to see what shows up. It’s not exact; the Styles section is hard to copy from and jumps around a lot, but you can usually get to what you’re looking for.
You can also right-click and Copy selector to get an idea of what’s going on.