Here is a screen shot of the Web application page for animations, after a few animations have been added:
Initially there are no available animations :(
But the good news is that Webapp allows the user to upload their own animations!
Just use the file selector and upload button. The animation uploads are saved to the Raspberry Pi SD card.
The same applies for the Still Images page!
The Scrolling Text page has an input component to specify the text to scroll on the RGB LED panel.
If you prefer to customize the installation, then see the Settings page.