Version 4.2.2

[CHANGED] Simplified scrollbar button options on Chromium (#207)
[CHANGED] Scrollbar hover and click effects now take scrollbar track color into account to prevent lack of contrast between thumb and track (#192)
[FIXED] Set scrollbar corner color to match scrollbar track on Chromium (#200)
[FIXED] Scrollbar is now always visible on focused item when set to automatically hide on Chromium (#201)
[FIXED] Checkboxes are now vertically centered on website rule list items (#202)