Can't change the Metro (win 8 start) background colour

I've managed to figure out how to do it - despite staying clear of Metro through using a third party normal start menu.
When I press the correct item in metro to customise the colour, absolutely nothing happens.
Any idea what could be wrong?

I know I can hack this colour straight in the registry but I prefer not to.
I want to trigger the GUI based colour selector

Any idea what could be wrong? (Win8 Pro with all the latest patches).

You have to use one of the third party utilities to do it. Brink has the info here. http://www.eightforums.com/tutorials/2678-start-screen-change-background-color-image.html Save it as a favorite. Windows 10 it is a little harder to do the Lock screen, since Microsoft made it that you have to go about a whole different way with that version.

Thanks Broe23! I'll check that out.

But I don't understand - why isn't it working? The functionality is there.... I have changed the colour previously, for example when I set up Windows 8 and when I migrated to Windows 8.1. I used to have it yellow....

Why would it not be possible to change anymore?

PS- I see you are a Linux Mint user - wow! Just going to spend a day now, getting dual boot set up, for Linux Mint. Don't like the direction WIndows is going + not willing to be spied on as a matter of routine. I don't know anyone else who's made the leap, so heading over to the Linux Mint forums later. This has been a long time in the making but the time is finally here.

It does. But if you do not have your roaming profile synced. It will revert it.