Be careful with old versions!
These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.
✔ Added styling update notification...
✔ Changed Prefs's getCharPref() usage by getComplexValue()
✓ Added support for Thunderbird 5+
✓ When there are less than four themes the shuffle will be done shifting themes one by one, otherwise it'll be done randomly like the previous version. Further, we'll now ensure a theme isn't repeated from browser loads.
✓ Other minimal code optimizations and sanity checks.