recursive wrote

> This is probably already a potential known solution to the display issue
> on
> MAC Retina displays but I've just tried the latest CogVM with the Pharo
> 4.0
> image and using Cog fixes the issue, it no longer leaves outlines of
> windows or tracers.

No, this is just because Cog defaults to "Open in low resolution" and Pharo
VM does not. You can start Pharo VM in low resolution and then you do not
have the artefacts. This might be a short term workaround. But the goal
would be to have retina support for Pharo :)

<http://forum.world.st/file/n4822030/Cog_low_resolution.jpg>