Planet.g.o still uses the old layout. Could it use Tyrian, too?
I have a WIP for migration from the current software to a new one along with tyrian theme. I will come back with more information soon.
I have a sample page for Tyrian at https://dev.gentoo.org/~grknight/planet/. The subpages are not yet updated until I can get feedback.
Tyrian is now active. Enjoy