Temporary KColorScheme change - hard-code some state colors

[Maksim Orlovich]

> it also messes with the appearance of things like the debugging toolbox in
> plasma that currently appears on mouse hover; the entire thing is greyed
> out
> until you actually click on one of the widgets. this is certainly not the
> expected or desired behaviour. forcing it to be the currently active
> widget
> when it slides out would cause other side-effects, so i don't want to do
> that
> either... =/

Some things should never be focused but should never have reduced-contrast
text--- see KPassivePopup