Most defintely +10 here!
Actually, it’s pretty much a deal breaker for me personally. I would already have fully committed to Agenda if there would have been a Dark Theme. A confirmation that this feature is coming would be enough for me to migrate everything to Agenda.
I hope you will strongly consider a Dark Theme. I do believe it is a very popular and important feature.
And I love the non-subscription decision.
Fantastic work on Agenda!