is there a way to make my image fade in, in mit app viewer?
This is off the top of my head.
I've not tried this.
The AI2 Canvas has a Background color and a Background image.
The background color would usually hide the background image.
You can build your own color at run time, with all 4 components RGBA.
The 4th component of the color might be transparency (I am not sure.)
So if you use a Clock Timer to vary the A value of the background color of a Canvas with that image, would it act as a fade?
Maybe.
Also,
and there is an animation feature for screen transitions in the Screen component, which is fancy.
(I don't do fancy.)
You could do a similar thing with a button in an arrangement.