Windows 10 Theme glitch

I'm running a Windows 10 Desktop and I had a glitch.
This is what I see:

Restarted multiple times, tried to do sfc /scannow but it didn't help me.
How can I resolve this?

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P. S. My PC was okay before I activated high-contrast mode accidentally and when I reactivated it I got that.

Go to Settings/Personalization/Themes and activate the 'Windows' default theme, reboot.

Thank you, it worked!

Exelendary said:

Thank you, it worked!

Good to hear!

Yeah, High Contrast mode is based on what is called the 'Aero-Lite' theme, if you don't revert back to the default first, it'll hold on to that Aero-Lite shellstyle.

Now you should be able to customize the norm to your desired colors etc.