Mimmo the root - Rainbow UI Materials Pack

A set of 8 customizable UI materials with 24 ready-to-use material instances, built for menus, backgrounds, buttons and HUD elements in UEFN.

What's included

- 8 master materials (MUI_ / M_ prefix): animated rainbow backgrounds (classic, angular, spiral and flower patterns), a rotating color-blend background, and rainbow image and glint effects for UI icons.

- 24 material instances (MIUI_ prefix): 3 per material, each with a different look:

- Soft: slow, subtle, low glow.

- Vivid: balanced speed, saturated colors, strong glow.

- Fast: high speed and energetic motion.

Customization

Every material exposes parameters in the Material Instance editor. You can change rotation and animation speed, pattern scale, rainbow cycles, twist, petals and rings, emissive intensity, colors, glint size, delay and color, and the background texture. Duplicate any instance and tweak it, with no extra shader compilation.

Why instances

All variations share their parent material's shader, so the pack stays light on performance and compile time. Change a parameter on the instance and you get a new effect.