Need direction on creating plugin

Hello all,

I am looking to create my own plugin for the block editor so that I can do some custom animations on an image (For now, simple fade in and out) I am sure that there are plugins already available that do this but I would like to add in some custom functionality to what I am doing.

I have been looking online for tutorials related to custom blocks which I did find a helpful one but it dealt with adding in text input boxes. I am thinking that I could specify a picture that I want to apply the animation to.

1) In my attributes section of the wp.blocks.registerBlockTye function, how do I specify that I want a picture?

2) What do I need to do in order to add in a block menu to edit the animation properties?

I have been looking for some tutorials on this but so far have found none. Any assistance is much appreciated.