What Features Should A GUI toolkit have?

[Paulo Pinto via Digitalmars-d]

On Monday, 9 March 2015 at 12:29:54 UTC, Ola Fosheim Grøstad 
wrote:
> Some applications that use Chromium Embedded:
>
> http://en.wikipedia.org/wiki/Chromium_Embedded_Framework#Applications_using_CEF

I don't use any of them and Github for Windows was done in WPF 
last time I checked, how come it is listed there?

--
Paulo