Adobe Photoshop / Luminescent Lines

  1. Create a new layer and fill it with black
  2. Select Brush Tool and open Brush Panel Window - Color: White, Master Diameter: 1px, Hardness: 0%
  3. Edit Shape Dynamics - Angle Jitter: 5%, Roundness Jitter: 5%, Minimum Roundness: 25%
  4. Edit Scattering - Both Axes, Scatter: 10%, Count: 1, Count Jitter: 50%
  5. Turn on Smoothing
  6. Select Pen Tool and draw a path
  7. Right-click and apply Stroke Path
  8. Draw more paths and apply Stroke Path each time
  9. Merge the lines into one layer
  10. Apply Drop Shadow - Blend Mode: Normal, Color: Pink, Opacity: 75%, Distance: 0px, Size: 0px, Contour: Half Round
  11. Apply Outer Glow - Blend Mode: Normal, Opacity: 75%, Color: Rainbow gradient, Size: 20px