How to create neon lights shader in 2D?

[latent lake]

Hi all,

Do you happen to know how to implement a shader that would allow me to create neon lights out of basic shapes (such as Line2D and Polygon2D)?

I am looking for some resources on how to implement neon lights in 2D. I was only able to find some solutions based on glow in 3D, but I had no luck with 2D.

I would like to achieve something similar to this: https://www.dreamstime.com/big-collection-video-games-logos-vector-conceptual-neon-signs-video-games-emblems-design-template-modern-trend-design-big-image120827138

[somber ledge]

You may not even need a shader (though depending on your vision it can help). Imo most of the work is done by the glow effect which can be turned on for all renderers