My pleasure…I’m glad this worked as a good starter for your project.
I think SOME people have used glowLayers on linesMesh… to make lines appear thicker.
I had a playground that used some glow on linesMesh… https://www.babylonjs-playground.com/#258JTK#13 … but I am having problems loading it… at the moment. Might work for you. A little post about it… here.