Clean up root folder.
Fix some stray tabs and style violations.
Mouse mode toggle creates really confusing situations right now, disable it.
Start help book. Tweak UI to deal with issues discovered trying to explain it.
Rework toolbar UI. No more drawer, use a popover. No more weird toggle button, use a segmented control. Swap sides.
Rename the application delegate, and hopefully catch the last vestiges of the old names.