[Newby] Question about materials

Hello, I'm not sure if this is the right place, but I'm trying to apply a material to an object to have an outline that increases and decreases with time (a glow-like effect) and remain transparent inside.

What shall I look for? keywords etc? I'm a dev myself, but started to learn a bit of meshes and graphic design, so if there is something similar I can buy on asset store I also don't mind, I just don't know what kind of keyword to look for.

Thanks!

 

I can't think of an existing asset that is exactly this. But there are a ton of examples of outline shaders in various forms out there, and assets that can do most or all of this. I suspect any existing asset would require you to modify the outline width via script to animate.