A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate in the Unity community.
Separate names with a comma.
This is now doable within Unity using the built in JsonUtility. https://docs.unity3d.com/ScriptReference/JsonUtility.html
Set up your sprite as a 3d quad; add the shader in the material, then set the texture to the image of a sprite you would be using otherwise.