Nearly every component of Windows 8 can be customized to suit your needs, some settings however are buried deep into the registry.
How to Change the Color of the Sign In Screen in Windows 8
Note: This hack only affects the screen where you have to choose a user, not the screen where it asks for your password.
Press the Win + R keyboard combination to open a run box, then type regedit and hit enter.
When the registry editor opens, drill down into:
On the right hand side create a new DWORD (32-Bit) value and name it DefaultColorSet.
Then double click on it to open its properties.
Now change the Base type to Decimal and assign it a value between 0 and 24. Here’s a list of some common colors:
11 – Dark Green 12 – Light Green 14 – Red 16 – Purple 17 – Dark Blue 18 – Light Blue 21 – Mustard 22 – Pink 23 – Grey 24 – Gun Metal
That’s all there is to it.
