In the past some of you may have encountered issues with slow image loading in the editor, which would have primarily manifested as slow scrolling in the widget libraries pane. This issue had to do with color profiles and only affected Windows machines. While this was fixed in previous builds, as of release candidate build 3370 we have decided to revert that fix since it was causing other bugs.
If you’re on Windows and are noticing that libraries are slow to scroll in builds 3370 and onwards, then please email email@example.com so that we can assist. Thank you!