[nexusplanet]

Hi.

I'm using a folder that contains alls my movie fanart as source for the movie background slideshow. Unfortunately, the images are changing very fast, about every 3 seconds. Is there a way to change the interval?

System:
Raspberry Pi 4B
Libreelec with kodi Omega

[kurai]

It's not a timing element that can be changed from a GUI setting - you'll need to edit an .xml text file.
The original default is 5 seconds (5000 milliseconds in the setting) with some of that taken up by the fade-in/fade-out animation between image changes.

You don't say which version/variant of Transparency you are using, but broad strokes:-
In your Kodi directory navigate to /addons/skin.transparency/ folder.

If you are (most likely) on the old-school original Transparency branch by @ronie, subsequently partially updated by @konetzed et al and more completely by @mikeSiLVO...
In file .../1080p/Includes_home.xml find section <include name="Home_Movies_Fanart"> and change value of <timeperimage>5000</timeperimage>

If you happen to be on the majorly reworked and fully modernized version with the Skin Shortcuts architecture by @mikeSiLVO but have misjudged your 3 second impression of the timing ...
In file .../1080p/shortcuts/template.xml find section <other include="HomeFanartFrame"> go down to the <control type="multiimage"> chunk and change value of <timeperimage>7000</timeperimage>

[nexusplanet]

Wow, that was fast. Thanks a lot.

I did not know that there are different branches of the skin. Libreelec is only showing this particular one for me.
Looks like i'm on the old-school branch. Changed the duration time to 1h which is more than enough for me. One change everytime you open the Movie tab would be best but i can live with the 1 hour setting as well.

Again thanks a lot for the quick and detailed reply.