PowerShell color sets

gistfile1.txt

Putting these lines into your powershell profile 
(a file named profile.ps1 which sits in your Documents\WindowsPowerShell\ folder 
(you may have to create that folder) will remove most of the unreadable colors:

Set-PSReadlineOption -TokenKind comment -ForegroundColor white
Set-PSReadlineOption -TokenKind none -ForegroundColor white
Set-PSReadlineOption -TokenKind command -ForegroundColor white
Set-PSReadlineOption -TokenKind parameter -ForegroundColor white
Set-PSReadlineOption -TokenKind variable -ForegroundColor white
Set-PSReadlineOption -TokenKind type -ForegroundColor white
Set-PSReadlineOption -TokenKind number -ForegroundColor white
Set-PSReadlineOption -TokenKind string -ForegroundColor white
Set-PSReadlineOption -TokenKind operator -ForegroundColor white
Set-PSReadlineOption -TokenKind member -ForegroundColor white


And if you have never done it before, you'll need just once to type this  in PowerShell:

Set-ExecutionPolicy RemoteSigned