QWebView Blurry in 4.8.5 on Retina displays using the raster engine

[kamillus]

The titlebar seems nice and clear, however, the rest of the webview is a little bit blurry. I tried adding

@
<key>NSHighResolutionCapable</key>
<string>True</string>
@

But it didn't help (although it did make the title clear)

Any advice?

[kamillus]

Actually, it may be all the widgets that are blurry; not qwebview exclusively. My various dialogs appear to be blurry as well.