Blender Version  4.2, 4.1, 4.0, 3.6, 3.5, 3.4, 3.3, 3.2, 3.1, 3.0, 2.93, 2.92, 2.91, 2.9, 2.83

https://superhivemarket.com/products/nebula-generator

Blender 3D add-on for easy creation of various neon signs, lamps, pointers, and lights.  With the “Neoner” add-on, you can quickly and easily convert any curve to a beautiful neon light.  Add-on optimized for EEVEE render engine but can be used with Cycles render engine too.

Usage: 

• Add a curve (shift + a – Curve) and form the desired shape, or add any text (shift + a – Text) or a mesh (shift + a - Mesh) to the scene.
• Pressing the “Make Neon” button in the add-on panel will convert the active object into a neon highlight.
• Add-on options allow adjusting the light color, tube thickness and location, the presence and number of holders, and the background.