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Current state: `Origine ` and `Origine compact` theme should work fine. A great base to test this PR

Testing and feedback are very warm welcome before I start to work on the themes @Frenzie @Alkarex @aledeg

> That looks very polished overall. Thanks for your feedback. I appreciate it very much. > > The login page doesn't look finished yet all off to the left (not...

The buttons in the nav menu are improved now. Please check if it is good enough now

@Alkarex Would this be a good solution?  I think, that the help button could be a great piece for onboarding new users. Experienced users could disable the buttons.

> When you open the user labels menu of an article, and close this menu again, then scrolling down with arrow key does not work anymore ✅ Done > The...

Most themes are updated now. It is a great time to have a look again on this PR. Check it out and give me feedback please.

> Note about the release process: as it is a relatively big change for users, I suggest that we release FreshRSS 1.24 in the coming days, and then merge this...

> > Which offset do you like? What is your suggestion? > > This is for the _mark as read during scroll_. We need to make sure that articles are...

> 3. Loading: The current layout has its "flush" optimised so that the loading period has a proper UI: > > >  > > But with this PR, the...