The HighDPI support is revamped and improved substantially. Anybody who has problems with HighDPI should use trunk.
Tested 1.8 and trunk and works amazing! Tested on Ubuntu 17.10 and Windows 10, everything is scaled automatically, no need of workarounds.
The designer is amazing now, I need to say better than Visual Studio. The latest time I tested Visual Studio C# Application I can't even make the application high dpi because is so hard to do.
Amazing job, never seen a feature like this so well crafted.