FIX: The panel again uses native scrolling in order to restore touch device compatibility.

FEATURE: A contrast color is now used in the panel to distinguish all clickable elements.
FEATURE: The PaleMoon and SeaMonkey applications are now supported.
FEATURE: The toolbar button now also gets appended to the ThunderBird application.
FIX: The panel content scroll buttons are now always displayed when sizing down by making use of the resize event.

FIX: Start-up is now more reliable, for example when quickly opening multiple windows.
FIX: Context menu items are now created only when a menu is shown (this also prevents the XUL overlay from failing).
FIX: The panel background was made transparent to prevent a paint bug with 100% CPU upon resize.
FIX: The outdated extension preferences branch is now removed directly after upgrading (and no more after uninstallation).