No more JCenter! Chuck it in the bin. It's shutting down in less than 3 months.
Update to the newest Vis-UI! This fixes some longstanding issues in the file picker, and I also added support for viewing/selecting hidden folders if your Android SDK is there, for example.
That's about it. I fixed a typo in the layout, I guess. The Vis-UI changes should be very useful for people who have their Android SDK installed by Android Studio on Windows, where it defaults to being inside a hidden folder.