Fixed navbar changes when hitting top

Hello,
I checked the community via searcj function now for a while, but can`t find a proper hint for my issue.
Allow this question, please:

Fixed-to-top navbar.
No problem at all.

Now, once the Navbar hits the top of the screen, a new navbar appears and replaces the old one, with a slightly different design, or in my case just with an additional logo in one edge.
Maybe I need a script that replaces navbar, once it hits the top of the screen?
I have no idea whether my idea is feasible to establish with Xara.
Any ideas?
I found an example in the internet, which generally shows what I mean (means, the effect is what I am targeting, the content is different for sure)
http://displaymanufaktur.de

I am using XDP12

I know exactly what you are writing about and your link is a good example.

I don't think you can do this without a script. Maybe Acorn or Siran or one of our other clever member will have a suggestion or a script.

Well,
Xara has the option to make something visible, as soon as another object appears on the screen.
Now, what I am looking for is, a solution that just works vice-versa.
Make an object visible, once another object disappears (runs out of the screen).
Mmmmm, but how ? That is the issue :rolleyes:

The problem as I see it is using a trigger object, an object that will trigger a certain animation/reveal, will be different on every monitor. If the trigger object is visible when the page loads because the visitors screen is large, then the reveal will take place right away.

I will suggest this to Xara. I think they could figure out a way to make it happen as in your example.