Rated 5 out of 5 stars

It is my favourite theme for its beautiful choice of unobtrusive colours, giving me a hint among other programs which one is actually on top.
I use dark mode only (LCARS color scheme was a logical choice for a futuristic system back in the 80/90ies).

I have to give two evaluations: it works fine in TB128.4.0esr on my iMac from 2017/Ventura 13.7.1

but it is "not compatible" with the same version on my Retina MBP 2012 on Sequoia 15.0 (via OCLP)

I had the "lightbulb issue" on this MBP in the mail quick filter buttons before, on MacOS 12 Monterey, where the "signal bulbs" were grey/dark green instead of orange/dark green.

Now I cannot install the theme at all.
Since Sequoia on a 12 year old CPU/GPU is the oddball here, I cannot give a bad mark for that ;-)

But maybe you can have a look into it, should you come across more users of the Open Core Legacy Patch. It may have to do with the old GPU+Metal.

This review is for a previous version of the add-on (1.6).  This user has a previous review of this add-on.