MahApps/MahApps.Metro — pull request #29 by akoeplinger (2012-02-28 11:58:32+00:00)
Title: Fixed #18: Can't set the "IsEnabled" property of the slider control to false

By removing the "Disabled" visual state, the control works when setting `IsEnabled` to `false`.
I guess this is a left-over from the default slider control template, so hopefully the visual state isn't needed at all.

This fixes #18.