Rated 5 out of 5 stars

Changing between "Icons only", "Icons and Text", "Text only" doesn't work as expected. But then, it is an experimental theme.

There are only two other themes which are still up-to-date for SeaMonkey: LCARStrek (and its subdued twin Early Blue) and XPFE-Classic. And both of them have troubles with restoring tab session (while your theme doesn't).