Winunleaked released a series of screenshots showing the Windows 8 login screens from M3 to the most current pre-beta.
As Tom Warren at Winrumors.com points out, they do seem to be getting progressively darker.
I thought they are interesting to take a look at so here they are in sequence..
[caption id="attachment_10412" align="alignnone" width="590"]
Windows 8 login m3 v2[/caption]
[caption id="attachment_10413" align="alignnone" width="590"]
Windows 8 login m3 v3[/caption]
[caption id="attachment_10414" align="alignnone" width="590"]
Windows 8 login Beta v1[/caption]
[caption id="attachment_10415" align="alignnone" width="590"]
Windows 8 login Beta v2[/caption]]]>
