Hello DenizYosunu
First I would check if in Edge you have any themes or customization by mistake:
In the URL input: edge://flags , and check if any accent color enabled on "#edge-color-theme-picker"
From: Settings > Appearance try to change the color theme to see it that changes the "wrong colors" you see
Then try reset Edge components:
Navigate to the folder: C:\Users\%yourusername%\AppData\Local\Packages\ and delete the folder: Microsoft.MicrosoftEdge_8wekyb3d8bbwe
then run the next script to reset Edge (from elevated command Powershell session ):
Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml" -Verbose}
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