Thanks for your comment.
To be honest, though - I am a little bit confused with your message.
Let me explain, why.
Indeed - with AUI 9 we broughtin themeability ( you can read more about that in this thread: The direction for AUI 9 ) with dark-mode being one of the default themes shipped with AUI.
Unfortunately - this is not just a simple drop-in replacement for products to fully utilise the new capabilities; not even to mention a full, cross-all-views dark-mode support. There’s way more work that our dev teams need to process before we can release proper theme support in products.
What is important, though, is that virtually all product teams have ongoing initiatives around the dark-mode theme.
In case of Jira Server - you can follow (and vote!) the thread in this ticket: https://jira.atlassian.com/browse/JRASERVER-63150
It’s even trickier when it comes to Jira Cloud.
As majority of Jira Cloud is React-based, it uses a react-oriented alternative to AUI - Atlaskit. You can find more details on the library on https://atlaskit.atlassian.com/
Atlaskit already comes with (experimental) theme package ( https://atlaskit.atlassian.com/packages/core/theme ) and as far as I am aware - there’s some significant progress in bringing full-scale themeability to the library.
As a consequence - Jira Cloud has already made enormous progress towards the dark-mode goal. Does it mean it’s close to be “done-done”?
As you can imagine - the amount of work required to fully implement it is pretty significant. You can read on that (and vote!) in this ticket: https://jira.atlassian.com/browse/JRACLOUD-63150
I’m sorry to hear that AUI’s announcement might have confused you. I understand that it’s all a complicated mix of interconnected jars and it is extremely easy to get lost in the messaging.
I hope this message will help you better understand the state of all our dark-mode efforts.