Black world, glowing rainbow outlines. A retro vector-style shader with smooth colour flow, optional neon glow and full control over speed, hues and brightness.
A valley lit by glowing rainbow outlines.
Neon mode on, bright core with a soft coloured halo.
Cyan and violet rings flowing from the centre.
Green lines and scanlines, like an old monitor.
The default look: soft rainbow, gentle brightness.