How to make to top bar not to show the background underneath?

[IMGODDESS]

tnx

[Storm]

Zorin Appearance -> Interface -> Taskbar Settings -> Style

Enable Override panel theme background opacity, then adjust it to be solid.

[IMGODDESS]

but the taskbar settings are greyed

[Storm]

It's because you are using one of the layout that doesn't support it. Switch to default layout and you can adjust and manipulate the taskbar.

[IMGODDESS]

default layouts don't work well for me

[Storm]

You can move the default layout panel up, modify it and use plank in the bottom.

Here's an example of it:

[HowTo] Set up a Nebula theme Suite

[Nebula Logo] This guide will guide you through on how to set up your desktop specific as it's shown on the screenshot. [Screenshot from 2022-03-08 13-34-43] GTK/Gnome Shell Download and install the themes from here: https://www.pling.com/p/1727482/ If you don't know how to install GTK/Gnome Shell themes, check this thread: How to set a third-party desktop theme Icons Download and the icons from here: Nebula - pling.com If you don't know how to install icons, check here: How to set a t…

[Topaz]

That looks like the Top Bar in Gnome. The opacity is controlled by the gnome-shell theme you use. All the available ones in Zorin (through Tweaks) have transparent Top Bar to some degree.

Three options: 1) Find a gnome-shell theme with a solid background, install and use it; 2) Edit the existing theme (not easy); 3) Do nothing (recommended).

Note:
The gnome-shell theme controls more than the top bar, so using a different one may make other appearance changes, such as in the top bar drop down window and menus.