Accent colors?? (Don't know what they're called)

[Goatmilk]

Another little problem I have is the color of two desktop effects that I cannot seem to control - mainly because I do not know what they are or what they are called.

The first one is the line at the bottom of the screen:

and the second one the spot in the upper left corner when you put the mouse there to get an overview of your desktops:

Since both are the same shade of cyan, I just presume they are related. Both screenshots are taken from MX Linux KDE.

In Debian 13 KDE, installed on a virtual machine, those same two effects appear in a much more appeasing brown tone, complimenting the color palette of the wallpaper. In both systems, I have set Appearance > colors set to take accent colors from the current wallpaper. I'm not even sure if that has anything to do with it, as there isn't a cyan or blue pixel anywhere in my wall papers.

Does anyone know where I can adjust these effects? I've looked everywhere in the system settings but cannot seem to find anything. Might be the supermarket effect - you know, when you search something in vain and finally ask where the so-and-so cheese is, you're usually standing right in front of it.

 

[Condobloke]

If this were in Linux Mint, I would head directly for Themes.

You have Mx running, I think....so whether the equivalent is named the same or differently, I dunno.....but it has to be along those lines.