Code review comment for lp:~cimi/unity8/uitkPageHeader

> > > Why the
> > > - units.dp(1)
> > > in the "Fixed GenericScopeView test" commit?
> > there is a test in genericscopeview that checks the position of the listview
> > when the header is scrolled up, and there was one pixel difference between
> > PageHeadStyle code (using contentHeight for height of the container) and the
> > current one using implicitHeight - figured out it need to be smaller of 1px
>
> I'd be more confortable with
>
> - height: header.implicitHeight - units.dp(1)
> + height: header.__styleInstance.contentHeight
>
> What do you think?

considering we already use __styleInstance in this code, at this point it makes sense to use it even here, thank you nice idea!